Crawl Cosplay Trunk Tournament

Nobody was added in trunk by DracoOmega.

Extract from the commit: https://github.com/crawl/crawl/commit/ce41f9e9f24ae385d101b6f388931c2347a5245f

• A revenant formed from the collective resentment of an entire host of people who died alone and forgotten, they burn through multiple different identities as you fight them (and must be 'killed' repeatedly to put them to rest for good.) They spawn at the same depth as Sojobo.

• Their Pyrrhic Recollection ability consumes a memory to restore them to full health and temporarily give them access to a single powerful spell (or occassionally a pair of them, if one didn't stand alone well enough). These include many conjurations, but also summoning and some support spells like Haste or Cause Fear. They will use this ability shortly after being first damaged, and also to avoid a killing blow (each consuming one of 3 total memories they have to burn.)

• Their cast rates with these spells are notably high, but inflicting damage to them will end the state prematurely, giving the player a bit more agency in the first, and also giving the battle an 'ebb and flow' - periods where Nobody is are capable of burst damage, and periods where they are not (at least until you take another of their lives).