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Eldritch Cube

-level (
Casting Time
Concentration ( 1 minute )
Saving Throw

A black, nonreflective, incorporeal 10-foot cube appears in an unoccupied space that you can see. Its space can be in midair if you so desire. When a creature starts its turn in the cube or enters the cube for the first time on its turn it must make an Intelligence saving throw , taking 5d6 psychic damage on a failed save, or half damage on a success.

As a bonus action, you can move the cube up to 10 feet in any direction to a space you can see. The cube cannot be made to pass through other creatures in this way.

Rare Versions

Kreven’s Stunning Eldritch Cube. A creature that takes 20 or more damage from this spell is stunned until the end of its next turn.