Multiattack

Four Pseudopod attacks.

Pseudopod

Melee Weapon Attack: +8 to hit, 15 ft., one target, 10 (1d10+5) bludgeoning damage. If mimic is in object or terrain form target is subjected to mimic's Adhesive trait.

Stalagteeth (Terrain Form Recharge 4-6)

Launches harpoon-like pseudopod shaped like pointed object (ex: stalagtite) at a creature in its space. Target: DC 14 Dex or 24 (7d6) piercing damage and pseudopod stuck in it. While pseudopod is stuck target restrained and 10 (3d6) acid at start of each of its turns mimic can use bonus action to pull target up to 30' to its nearest wall ceiling or similar surface. Creature including target can use action to detach pseudopod via DC 15 Str. If target detaches harpoon while stuck to mimic's ceiling: normal fall damage.