Giant Crab (custom)

AC 15 - HP 13 - 30 ft. swim 30 ft.
Skills Stealth +4
Senses blindsight 30 ft.
Amphibious
Multiattack 2 Claws
Claw +3 / 1d6+1 bludgeoning, grappled
(escape DC 11). The crab has two claws, each
can grapple one target.
Shell (RAct on Atk) Fall prone, +5AC, -5 damage