Eddie Drood's abilities (For Heaven's Eyes Only)

Eddie's armour withstands powerful gunfire easily, including explosive flechettes fired at a thousand rounds per minute:

I’d started to give my full attention to the closed elevator doors when the building’s main security systems finally kicked in. Great sliding panels opened in the corridor walls, and I had to blink a few times. I would have sworn they weren’t there a moment before. Really large gun barrels emerged from gun emplacements inside the walls, and turned quickly to orient themselves on Molly and Isabella. I ran forward and put myself between the gun barrels and the witches just as the guns opened fire.

The bullets pounded away at me, targeting my head and chest and gut, and while my armour easily absorbed the bullets, the sheer intensity of the fire meant I daren’t move, for fear of exposing Molly and Isabella. This was serious weaponry, pumping out bullets in a steady stream. They chewed up the walls behind me on both sides, blasting jagged holes in the doors and blowing them off their hinges. Some hit the dog’s body and blew the dark flesh apart in a series of explosions. Meat confetti blew everywhere, and dark liquids splashed up and down the corridor. The smell was appalling, as the bullets blew away muscles to reach the organs within.

Wave after wave of bullets slammed into me and were absorbed, doing no damage. I was starting to feel a bit cocky, a bit Is that all you’ve got? when the gun barrels suddenly fell silent and retreated into the walls. To be immediately replaced by even bigger new guns, firing explosive flechettes at thousands of rounds a second. The dead dog blew up, blown to fragments in a moment. I stood my ground, bracing myself and leaning slightly forward into the solid stream of bullets, my armour sucking up the bullets with continued enthusiasm. When I was sure my armour could handle that much concentrated punishment, I advanced slowly forward into the pounding fire, grabbed each gun barrel in turn and ripped them right out of their emplacements. I tied the last few in knots, to make a point, before throwing them on the floor. Suddenly it was very quiet in the corridor. Followed by a wild round of applause from behind me, and a wolf whistle from Molly. -For Heaven's Eyes Only, Chapter 3: Hell Hath Fury

Drood armour's visors have automatic sequences to protect the wearer's eyes from bright flashes:

Uncle Jack and I tore off after the Satanists. One turned, took up a magical stance and thrust a splay-fingered hand at us. A brilliant flare erupted in the air between us, an incandescent glare so bright and vivid my mask had to shut itself down completely, sealing me in darkness to protect my eyes. I could hear people crying out and panicking all about me. I stood still, waiting, and the mask quickly adjusted to the fading glare and cleared again. -For Heaven's Eyes Only

Eddie reacts to some gunfire:

And an increasing number of really pissed-off people weren’t even trying to run. They grabbed the nearest weapons and opened fire on the Armourer and me. And Molly, who’d caught up with us. I moved quickly to put my armour between her and the gunfire. The Armourer dropped back to cover the rear. All kinds of guns opened up on us from every direction at once. The din was deafening. Bullets hammered into me. My armour absorbed them all easily, and the Armourer sucked up punishment behind me. Molly ducked down between us and peered interestedly out to either side.
“I think we’ve upset them,” she said. -For Heaven's Eyes Only

Five-thousand explosive rounds a second aren't enough to dent the Drood armour. All they do is push Eddie back, and even then, that stops being the case once Eddie digs his heels into the ground:

The armed men in front of me stopped firing and fell back to let someone else through. He was carrying a massive armament known in the trade as Puff the Magic Dragon. He was a big man, and he still had to strain to carry the thing and point it in my general direction. He opened fire, and the long barrel pumped out five thousand explosive rounds a second. The sheer pressure of so many bullets slamming into me at once actually pushed me backwards. My strange matter was absorbing every single bullet and suppressing every explosion, but the sheer impact pressed me back like a fire hose. Until I dug my golden heels in. The wooden boards shattered underneath me, and my golden feet dug deep into the hard, stony ground. My backward momentum slowed and then stopped, my golden feet leaving long, deep grooves in the ground. I held my position, leaning slightly forward into the thundering fire, like a swimmer breasting the tide. And then, step by step, I forced my way forward against the pressure of the bullets. They hammered into me, raking across my chest and gut and then up to my head, but none of them could touch me. Until finally I stood right before the man and his gun, close enough that he could see his white, wide-eyed face reflected in my featureless golden mask. And then I ripped Puff the Magic Dragon out of his nerveless hands, broke it over my knee and crumpled the two pieces into junk with my armoured hands.
“Run,” I said. And he did. -For Heaven's Eyes Only

Aircraft gunfire and supersonic missiles do nothing whatsoever:

The plane’s targeting system finally locked onto me, and it opened up with every weapon it had. Heavy machine-gun fire sprayed across me, followed by two supersonic missiles. My mask shut down again as the world disappeared in fire and noise. When I could see again, I was standing in a large open space, with all the surrounding stalls and booths blown apart or blown away. Quite a few more were on fire. Molly was standing some distance away, protected inside one of her special protective fields. -For Heaven's Eyes Only

The Armourer's Drood armour no-sells tank shells:

I saw the Armourer facing off against the remote-controlled tank, and headed over to back him up. A great, hulking steel monster, the tank roared towards my uncle, who stood his ground and let it come. The tank fired shell after shell at him, each one dead on target, exploding against his armour without driving him back an inch. When the smoke from the explosions cleared, he was still standing where he had been, though some of where he had been standing wasn’t there anymore. I could tell from the way he was posing, arms folded easily across his chest, that the Armourer was enjoying himself. It might have been thirty years since he’d seen action in the field, but he was still every inch a Drood agent. Besides, all those years working in the Armoury had probably made him rather blasé about being blown up. -For Heaven's Eyes Only

With augmented strength, the Armourer lifts and overturns a tank without even trying:

The Armourer waited until the tank was almost on top of him, and then he leaned forward, ducked underneath and lifted the whole front of the tank up off the ground. Its tracks turned helplessly, unable to get a grip. The Armourer walked slowly forward, step by step, raising the tank up and up until it tipped over onto its back. It hit hard, and a series of things went bang inside it. Streams of black smoke billowed out of cracks in its sides, along with bursts of flame from electrical fires. -For Heaven's Eyes Only

Drood armour is equipped to study the wearer's surroundings and record everything it encounters:

“I don’t have anything useful to offer you,” said the Armourer. “And this bloody thing is taking a lot longer than I thought it would. . . . Remember your armour is equipped to study your surroundings and record everything it encounters. Knowledge can be ammunition in a situation like this. So bring back as much data as you can.” -For Heaven's Eyes Only

I remembered the Armourer’s advice, and had my armour probe and investigate my immediate surroundings. I concentrated in a certain way, and the armour’s findings appeared on the inside of my mask, floating before my eyes. All kinds of readings and graphs and scales, half of which meant nothing to me. My uncle Jack is the scientist. It’s all I can do to program my TiVo. But . . . -For Heaven's Eyes Only

Eddie smashes his way through a building:

It was hard to make progress in a place where streets had no beginning and no ending, as though the world moved under our feet and we stayed put. We walked down one street several times before we realised what was happening: that its far end was attached to its beginning, like an endless Möbius strip. I lost my patience and my temper and applied a lateral thinking solution to the problem by turning abruptly sideways and smashing my way through one of the buildings. Bricks broke and shattered stickily under my hammering golden fists, some of them cracking into moist fragments, like exploded fruit. I broke through the wall and strode through the house, bludgeoning my way through room after room, rubble raining down on my armoured shoulders, until finally I burst out the other side and into a new street. Molly followed close behind me. We set off down the street, one that had sense enough not to piss me off, and Molly quickly picked up the trail again. -For Heaven's Eyes Only

Drood armour defends against reality altering:

Whatever happened, the armour kept pulling me back to reality. The one truly solid thing in this place, it would not change and would not allow me to be changed. And Molly . . . was probably too stubborn to accept any reality other than her own for long. I don’t know if she experienced all the things I did. I didn’t ask. -For Heaven's Eyes Only

The data-recording feature of the Drood armour is exclusive to the newer armour, post-Book 1:

“Are you sure someone from your family isn’t going to come charging in here, demanding we make a full report on everything that happened inside the dark circle?”
“Ethel will have told them that I’m back,” I said calmly. “But she’ll also have told them that I am more than ready to punch out anyone who pesters me, and then Riverdance on their head. And no one would even think of barging into another Drood’s room. It isn’t done. When you’ve got this many people all living together under one roof, privacy is nonnegotiable. They wouldn’t even knock unless there was a major emergency. We’re safe. Anyway, Ethel has all the readings and information my armour picked up and stored in my torc. She’ll have passed that on to the Armourer.”
“I didn’t know your armour could do that,” said Molly.
“The old armour couldn’t,” I said. “This new strange-matter armour is far more sophisticated. We’re still learning all the things it can do. The Armourer keeps bugging Ethel for an operator’s manual, but she says it’s important we learn these things for ourselves. Enough about my family, sweetie. Let them take care of the world for a while, while we take care of each other.”
Molly smiled. “Help me with this zipper, would you?” -For Heaven's Eyes Only

A whole procession of Satanists attacks Eddie with all kinds of magical and mundane weapons, including several aboriginal pointing and and a Hand of Glory, and his armour absolutely walls all of it:

The Satanists took their time closing in, jeering and taunting me in thick, spiteful voices. I’d spoiled their fun, their special event, and they meant to make me pay for that in blood and horror. They showed me their weapons, the awful things they’d brought down into London Undertowen with them. Some had Aboriginal pointing bones; some had glowing witch daggers; some had bone amulets. One had a Hand of Glory made from a mummy’s paw: a forbidden weapon. Some had black-magic charms, made from the bones and skin of suicides. One of them even had what looked very like a variation of my own Colt repeater. Which I hadn’t brought with me for fear of setting off the security alarms. I kept a watchful eye on the gun; it didn’t seem likely the Satanists would have access to strange-matter bullets, but you never knew. . . . The Immortals had them.
The crowd hit me with everything they had, unleashing all their weapons at once. Terrible energies crawled all over me, dancing on my armour, discharging in the air, unable to pierce strange matter. Magics fell away; curses failed, unable to get a hold. My armour rang like a gong and sounded like a bell from all the many impacts and concussions, but I felt none of it, safe from harm.
The armour absorbed bullets and shook off everything else. I stood firm, defying them all, letting them exhaust their weapons. The crowd quickly grew tired of that, and the braver of them surged forward to attack me directly. Glowing blades shattered on my armour, and magical weapons glanced aside harmlessly. I laughed behind my featureless mask, waiting for them to come within reach of my armoured hands. -For Heaven's Eyes Only

Eddie and Harry no-sell a massive barrage of automatic gunfire:

Harry nodded stiffly, reluctantly, and then we both broke off and looked around sharply, as we heard rapidly approaching footsteps. We moved quickly together, side by side, and a whole bunch of heavily armed security guards came running in from a side corridor. They all had automatic weapons, and they all opened up on Harry and me the moment they saw us. We stood our ground, not flinching in the least at the roar of automatic fire, and our armour soaked up every single bullet. The sheer impact would have knocked over a horse, but we didn’t budge an inch. More guards arrived, firing strange-energy weapons. Violent forces crawled and crackled all over our armour, trying to force a way in. They failed and fell away.
Harry and I waited to be sure they’d thrown everything they had at us, and then we strode purposefully forward. -For Heaven's Eyes Only

Harry Drood shows us a new application of the Drood armour's shapeshifting capabilities, turning the arms of his armour into a strange-matter machinegun:

“We should have brought an exorcist with us.”
“Well, next time we’ll know, won’t we?” I said. “You can’t think of everything when you’re in a hurry. Why don’t you wish for a tactical nuke as well, while you’re at it?”
“Don’t get tetchy,” said Harry. “Let me try something.”
He concentrated and brought both his arms together before him. Swift ripples ran along his golden armour, which then shifted and fused together, forming itself into a huge machine gun. The kind you see in action movies when the hero wants to bring down a whole house at once. I moved quickly to get out of the way, and Harry opened fire on the possessed corridor. Strange-matter bullets exploded from the long golden barrel with incredible speed and fury, chewing up the demonic flesh of the floor and walls. Purple meat exploded under the impact, dark blood spattering everywhere, and sustained firepower ripped the long pink tongue apart from one end to the other. Something screamed horribly: a vast, harsh and utterly malignant sound. Harry shifted his aim, tearing the corridor apart and devastating the elongated eye from end to end. The long split pupil exploded, and thick fluids rained down into the churned-up flesh of the corridor. Harry stopped firing, and the gun sank back into his armour again. And as he stood there, considering his work and finding it good, every single strange-matter bullet he’d fired jerked free of the demonic meat and flew back to him, to be absorbed into his armour.
“All right,” I said. “That’s impressive. Terribly destructive, but neat with it. I didn’t know our armour could do that.”
“I’ve been practicing,” said Harry. “Roger gave me the idea. His favourite film was always The Wild Bunch. I don’t know how many times he’s made me watch it with him.”
“The fiend,” I said. -For Heaven's Eyes Only

Eddie's armour no-sells death manipulation from Lady Damnation:

Lady Damnation came dancing forward, every step graceful and focussed and quite deadly. She can kill with a touch, they say, wither your heart in your breast, draw your soul out through your eyes. But she’d never met armour like mine. She stamped and pirouetted around me, chanting loudly in the old Rom style, her hands darting out at me . . . but always drawing back at the very last moment, unable to make contact with my armour. She made sudden clutching movements with both hands, but my heart never missed a beat. In the end she lunged forward and thrust her face right into my featureless golden mask. Her eyes blazed fiercely, huge in her pale face, but all she saw in my mask was her own reflection.
The power in her eyes rebounded, and the psychic feedback threw her backwards, howling with shock and horror. She turned and staggered off into the crowd, shaking and shuddering, and the crowd let her hide herself among them. -For Heaven's Eyes Only

Bishop Beastly's weapons and curses, which include a crucifix made of aboriginal pointing bones, do nothing to Eddie's armour:

Bishop Beastly sighed heavily, shook his great bald head slowly and waddled forward to take up the fight. His great form was vast as a wall, and almost as solid. There was a lot of muscle under that fat. He thrust a large bone crucifix at me, almost lost in his huge hand. Up close, I could see the cross had been made by lashing two Aboriginal pointing bones together. A good use of horrific materials. It would probably have worked on anyone else. The bishop thrust the bone crucifix into my mask, and the cross exploded in his hand, driving vicious splinters deep into his pudgy flesh.
Blood dripped thickly from his hand, but he didn’t flinch. He shook his injured hand once, to dislodge the worst of the splinters, and then held up his other hand. Massive rings showed on every fat finger, each with its own magically glowing crystal. He cursed me then, in loud, ringing tones, and I stood there and let him do it. He had a fine voice and a lot of faith, but the confidence went out of him as one by one the light faded from the rings’ crystals, their energies exhausted against my armour. The bishop surged forward, his robes billowing like a scarlet sail, hitting me with an old-school exorcism in classical Latin, and I punched him out. His massive head snapped back, his eyes rolled up and he measured his length and considerable girth on the floor. I swear the whole floor shuddered out of respect. -For Heaven's Eyes Only

Eddie's armour allows his footsteps to ignore a frictionless fluid doused upon the floor in front of him:

He threw a capsule onto the floor before me, and a thick grey fluid splashed everywhere, lapping against my golden feet. I knew what it was; I’d seen Indigo use it before: a specially engineered frictionless fluid, designed to cut off all contact between a bad guy and the floor he was standing on. I’d seen whole crowds of villains lose their footing and crash to the floor and not be able to get up again. Very useful stuff. Indigo gets it from some military source. I walked right through it and didn’t miss a step. Indigo backed away, startled. The frictionless fluid had never failed him before. But strange matter follows its own rules. Or imposes its own rules on the material universe. Just like a Drood, really. -For Heaven's Eyes Only

Acid strong enough to eat through steel does jack to Eddie's armour:

Indigo threw another capsule at me, and it smashed against my golden chest. Thick, steaming fluid ran down my golden armour, and again I recognised it. Acid strong enough to eat through steel. It ran harmlessly down my armour and pooled around my feet, hissing and spitting as it ate holes in the floor. -For Heaven's Eyes Only

An EMP fails to do anything to Eddie's armour:

The Indigo Spirit was still backing away, but he hadn’t given up yet. He held up a large, blocky piece of tech in one hand. There was a loud, uneasy murmur from the crowd, as many of them recognised it. I knew what it was, because I’d had the Armourer make it for Indigo as a Christmas present: a handheld EMP device. Indigo made sure I got a good look at it and, when I still didn’t stop, activated the thing with a dramatic gesture. The electromagnetic pulse swept out across the Wulfshead in under a second, and all the lights went out at once as every piece of technology stopped working. In the sudden darkness there were brief flashes of light from small explosions in the crowd, hidden bits and pieces going bang. A few fires broke out. Dull amber lighting came on as the emergency generators kicked in. The new subdued lighting made the club look like a cave with far too many shadows in it.
“Sorry,” I said to Indigo. “But my armour isn’t technology. As such.” -For Heaven's Eyes Only

Eddie rips open a set of steel doors twenty feet high and almost the same width across:

We went down and down, from floor to floor, until we were forced to a sudden stop by two massive solid-steel doors that blocked our way, twenty feet high if they were an inch, and almost as wide. I pulled at one of the doors, and it didn’t budge at all. There were three separate locks, each the size of my head. I grinned behind my mask, placed both golden hands flat against the doors and pushed hard, till my golden fingers sank deep into the steel. And then I pulled. . . . The three locks exploded, one after another, and Molly had to duck behind me to avoid the pieces that flew through the air like shrapnel. The doors surged outwards under my implacable strength, and when I finally had a big enough gap I let go and walked between them into a hall greater than any I’d seen so far, overwhelmingly huge, hundreds of feet long, full of the strangest collection of weapons and machines of war I’d ever seen. -For Heaven's Eyes Only

The Armourer rips the spine out of a giant patchwork ape:

The ape growled at her, and there was nothing sane in that low rumbling sound, only rage and pain and horror. And then the Armourer stepped out of the shadows to stand behind the ape and punch it in the back with all his strength. It screamed, loud as any fire siren. The Armourer’s golden hand sank deep into the muscled back, and then he ripped its spine out in one swift movement. A great gout of blood splashed across his armour and quickly ran away. The ape crashed to the floor, twitched a few times and lay still. The Armourer looked at the bloody thing in his hand and opened his golden fingers to let it fall to the floor. -For Heaven's Eyes Only

This is how big that ape was:

And out of the remains of the cylinder stepped a massive apelike creature. I have to say apelike, because it was another patchwork creature, roughly stitched together from a dozen different species, not all of them apes. It was huge, a giant, nine to ten feet tall and broadly built, its piebald skin stretched tautly over bulging muscles. Its fur had fallen out in great patches. So much time and effort, just so Nazi scientists could create the killer ape of myth and legend. -For Heaven's Eyes Only

Eddie uses the Merlin Glass to fucking BFR an attacker:

“No!” said MacAlpine. “You’re not going anywhere!”
He surged forward, his hands reaching for my throat. I whipped out the Merlin Glass, activated it and slapped it over MacAlpine. And the Glass sent him away.
“Where did you send him?” said the Sarjeant.
“Back to the cryogenic chambers,” I said. “To play with the other monsters.” -For Heaven's Eyes Only