5e Sheet

Giant Crab

Medium Beast, unaligned

AC 15 (natural armor)Initiative +2

Hit Points 13 (3d8)

Speed 30 ft., swim 30 ft.

CR 1/8 (25 XP); PB +2

Claw. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) bludgeoning damage

and the target is grappled (escape DC 11). The crab has two claws, each of which can grapple only one target.