Darius's Conjure Abberation

You summon a Abberation of challenge rating 4 or lower, which appears in an unoccupied space that you can see within range. The Abberation disappears when it drops to 0 hit points or when the spell ends.

The Abberation is friendly to you and your companions for the duration. It gets its own initiative roll for the Abberation, which has its own turns. It obeys any verbal commands that you issue to it (no action required by you), as long as they don't violate its alignment. If you don't issue any commands to the Abberation, it defends itself from hostile creatures but otherwise takes no actions.

The GM has the Abberation statistics.