Caer Gullet
Level 10 Solo Gargantuan Mimic
H40/heroSTR+++
You Are Standing Inside It.

(passive) No Speed; cannot be moved, Grappled, or Frightened. Heroes who leave the keep cannot be targeted by or target it.

Ambusher.

Its first attack of the encounter is made with advantage and cannot be Defended against.

Choose one.
  • Chew the Walls.

    (Reach 4) 1d6+16 damage to one hero. On damage: Restrained (DC 15 STR or DEX to escape).

  • Swallow.

    (Reach 1, target must be Restrained) 1d4+30 damage. Cannot be Defended against.

  • Beckoning Halls.

    (Reach 8) The 2 furthest heroes make a DC 15 STR save or are pulled 6 spaces toward it.

    Whenever a hero fails their save against Beckoning Halls, a nearby chest or tapestry unfurls into a Splinter Spawn minion (Reach 1, 1d12).

BLOODIED:

The facade sloughs off, stone becomes visible muscle and teeth. Armor drops from Heavy to Medium, and Chew the Walls’ Reach increases to 6.

LAST STAND:

Caer Gullet is dying! 100 more damage and it collapses. Until then, it always chooses Swallow (no longer requiring a Restrained target) and pulls the nearest hero to it for free at the start of its turn.

  • Opening: a hundred doors lick their hinges.
  • On crit: “Sit. Stay. Rest a while.”
  • Bloodied: “You are already eaten. You simply haven’t been digested.”
  • Last Stand: every window slams shut.
  • On death: the structure exhales and collapses into an ordinary ruin, coughing up centuries of skeletons and their belongings.