Regeneration. Acrolis regains 30 hit points at the start of its turn.

Change Shape. Acrolis magically polymorphs into a humanoid or beast that has a challenge rating no higher than his own, or back into his true form. He reverts to his true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (Acrolis's choice).

Multiattack. Acrolis makes five attacks: one with its bite and four with its tentacles.

Bite. Melee Weapon Attack: +17 to hit, reach 90 ft., one target. Hit: 45 (5d10 + 10) piercing damage.

Slam. Melee Weapon Attack: +17 to hit, reach 30 ft., one target. Hit: 18 (3d8 + 4) bludgeoning damage. If target is smaller than Huge, it must make constitution saving throw against DC 24 or lie prone

Acrolis can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The titan regains spent legendary actions at the start of its turn.

Tentacle Slam. Titan slams.

Bite (Costs 2 Actions). Titan bites.