THE BBC

You chouse a ramdom creature. you summon a brown-skinned human male that always appears two feet taller than the target. the target must make a Charisma saving throw. on a save fail, the target must take 2d8 of bludgeoning or penetrating damage. on a save success  the target must take a half 2d8.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.