Contessa v Gregor

Gregor was in the kitchen, on his back.  His chest heaved, and he'd covered much of his upper body in a foaming slime.  What she could make of his face was contorted in pain, scalded a tomato red that was already blistering.

"The woman in the suit," Faultline said, dropping to Spitfire's side.  She noted the slime.  Gregor's.  And Gregor had been burned with Spitfire's breath?  "Power thief?"

Shamrock let Faultline take over, positioning the clear plastic tube that was sticking into the hole in Spitfire's throat.  She had to spit blood out of her mouth before speaking, "No.  I don't know.  She came in here and took us apart in twenty seconds.  We didn't touch her."

- Interlude 18 (Donation Bonus #4)

Gregor is durable and generates chemical foams.

Sweeping her arms to either side, she spread the flames along the breadth of the road, drew the heat into her palms, and then hurled it at her opponents.

Burnscar didn't seem to have the same reservations about incinerating more vulnerable enemies that Spitfire did.

Gregor the Snail caught one fireball with a hurled glob of slime, extinguishing it.  The other landed in the middle of the group, not striking anyone, but nonetheless driving them apart.

-Interlude 11c (Anniversary Bonus)

Gregor the Snail, in turn, reached out with one hand and blasted out a steady stream of foam at the adjacent buildings.  He'd informed us before the fight started – he could concoct a variety of chemicals in his prodigious stomach and project them in a stream from his skin.  Adhesives, lubricants and strong acids, among other things.

-Tangle 6.1

She brought her knees up into his back, but one might have had more success hitting a waterbed.  The effect was the same.  Beneath his skin, which was tougher than one might guess, his skeleton, muscles and organs all sat in a sea of viscous fluids.  His skeleton, he'd learned, was more like a shark's than a human's.  It was a flexible cartilage that bent where bone would break, and healed faster than bone.  He'd been hit by a car and climbed to his feet shortly after.  Her kicks would not have much effect.

-Interlude 5