Beastmaster Guidedemon piece, evil weapon piece, devilet piece
Battle 12Move 8 (random tile)
Enemy pieces
demon piece
Weak to Slashing
Signature: Void ParalyzeParalysis
evil weapon piece
Weak to Ice
Signature: Smite of Excessive Rage
devilet piece
Weak to Earth
Signature: Void Fire III
Weaknesses come straight from the game data (they match the in-game board preview). The star ratings the preview shows for Strength / Intelligence / resistances aren't decoded yet, and attack patterns beyond the signature action aren't in the data at all — that's what the write-up below is for.
Strategy
Strategy: no write-up yet. Mechanics, kill order, which familiars handle it — one file per variant, rendered as tabs. (Create src/content/notes/crucible/battles/12/default.md; add more files for alternate strats.)