Amphibious. The crooster can breathe air and water.
Chicken Run. The chicken hen (rooster) can take the Disengage as bonus action on each of its turns. It also has advantage on ability checks and saving throws made to escape a grapple.
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.
Description
The Crooster is a Huge (15 by 15 ft.) creature. It has features of both a crab and a rooster. Its body shape and tail closely resembles a rooster (male chicken) and has 8 legs total (4 on each side). Its legs resemble chicken feet, it has crab claw appendages located on the upper body. It has an outer shell, its back shell is more fragile than its front shell. The comb on its head has a crab like body and eyes attached.
Lair and Lair Actions
The Crooster's natural lair is the stage, specifically the stage for Spongebob the Musical.