Void-Infused Pseudopod

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage plus 10 (3d6) psychic damage. The target must succeed on a DC 14 Wisdom saving throw or its Intelligence score is reduced by 1d4. The target dies if this reduces its Intelligence to 0. Otherwise, the reduction lasts until the target finishes a short or long rest.