Multiattack

A dimensional shambler makes two claw attacks. If both attacks hit the same target, the target is grappled (escape DC 16).

Claw

Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 17 (2d10 + 6) slashing damage.

Drag Through

The dimensional shambler shifts through multiple dimensions with a target it is grappling, ending in the same dimension it began. The creature must make a DC 16 Wisdom saving throw, taking 21 (6d6) psychic damage on a failed save, or half as much damage on a successful one.