Actions

Leviathan's Maw (1/day). Andy calls forth the presence of the Leviathan, summoning a gaping maw to entrap his enemies with divine fury. As an action, Andy chooses a point he can see within 60 feet of him. For one minute, translucent vapor emerges from the ground in a 10 foot radius centered on that point, forming a large maw resembling the Leviathan. Each creature in that area when the maw manifests must make a strength saving throw against your spell save DC or be restrained. Any creature that starts its turn in the maw takes 3d6 cold damage. As an action, a restrained creature can repeat the saving throw, ending the restraint on a success. At the start of Andy's turn, if any creatures are in the maw's area, he gains 15 temporary hit points.

Bonus Actions

Grasp of the Deep (3/day). As a bonus action, Andy creates 10-foot-long tentacle at a point he can see within 60 feet of him. It lasts for one minute, or until he uses this feature again. When created, Andy can use the tentacle to make a melee spell attack against a creature within 10 feet of it. On hit, the target takes 2d8 cold damage and has its movement speed reduced by 10 until the start of Andy's next turn. On subsequent turns, Andy can use a bonus action to command the tentacle to move up to 30 feet and repeat this attack.

Misty Step (3/day). Andy is surrounded by a thick fog, teleporting up to 30 feet to an unoccupied space he can see.

Armor of Agathys (2/day). Scaly Spines protrude from Andy's skin, forming a sort of iridescent armor. Andy gains 10 temporary hit points that last for the next hour. If a creature attacks him with a melee attack roll before the end of this effect, they take 10 cold damage. This effect ends once the temporary hit points are depleted.

Reactions

Guardian Grasp. When a creature Andy can see takes damage within 10 feet of the tentacle created by Grasp Of The Deep, he can use his reaction to reduce the damage to the chosen creature by half. This destroys the tentacle.