Excalibur

“Then we do our best to herd him somewhere remote and trap him in place,” I answered grimly, “and I’ll use the strongest offensive Noble Phantasm I know of to try and kill him. Preferably, before anyone gets hurt or killed.”

The details of that would be…difficult. In terms of raw strength, I didn’t know how the likes of Herakles, Gawain, or Siegfried compared to Alexandria, who did have the sheer physical ability to move Leviathan at least a little and lift him off his feet.

But if raw strength failed, there were definitely a few conceptual options that could work. Anyone with a high enough aptitude for commanding beasts or a Noble Phantasm that performed the same function should do. Gawain and Medusa came to mind.

Armsmaster scowled. “And you can’t use that Noble Phantasm instead of the barrier, to kill him before he even reaches the city?”

“It’s basically a gigantic, city-killing laser beam,” I said, trying my best to keep sarcasm out of my voice. “It’s costly, it’s got a massive area of effect, and it’s very, very noticeable. If the first hit isn’t the last, then I won’t get a second chance.”

Either because I would’ve pushed myself too far or because Leviathan would simply refuse to give me an opening to use it a second time. There were a number of ways he could do that, from just avoiding my line of sight to putting as many obstacles between us as possible.

Even for a chance at killing Leviathan, I wouldn’t kill whoever he used as human shields in the process.

“City-killing?” he asked.

“It’s used for wiping entire castles, fortifications and all, off the map in one go. Whatever’s left definitely wouldn’t be big enough
to call a city, anymore.”

…

“Excalibur?”

“Part three of Plan B,” I answered. “The gigantic, city-killing laser.”

Piggot’s eyebrows shot towards her hairline. “Excalibur is the noble phantasm that shoots a giant laser beam?”

“I don’t remember that being part of the myth,” Armsmaster mumbled.