Black Hole. Everything within 20 feet are pulled 1 foot closer every second.

Consume. Objects touching Writhing Cube take 1d10 Acid damage every round, creatures touching writhing cube also take 1d10 psychic damage every round as well.

Fly (10 feet). After 5 rounds, Writhing cube is allowed to move 10 feet without costing an action.

Break.+10 to hit, range 50/75 ft., 3 targets. Hit: (1d8 + 3) [Radiant] damage.

Vanish (1/round). Upon contact, ANY projectile that hits Writhing Cube is instantly destroyed, and any damage that would be taken instead heals Writhing Cube.

Sudden Force (Costs 3 Actions). Creatures outside of 30 feet, but within 100 feet, are suddenly pulled within 20 feet away from Writhing Cube. Roll a D20-1 to decide the distance away from Writhing Cube.

Impossible Creation. All sentient beings looking at Writhing Cube take 2D4 psychic damage.

The Abyss. All creatures must make a Con save, upon failure the creature is blinded for 1D4 Turns.