Behemoth

Behemoth needs a party — a healer, an attacker, and an instigator who holds enmity. Ecliptic Meteor wipes anyone who is not behind a Comet it dropped. Once the cast starts, items lock, so a late Farcaster does not save a hunter. When a Comet targets a hunter, move that drop into open ground away from the arena edge and away from Behemoth, then keep the monster off those rocks so its attacks do not shatter the cover. Put a standing Comet between the hunters and the red meteor glow. If enmity is on a hunter, drag Behemoth clear of the Comets so the rest of the party can reach cover.