Shapechanger. The weregator can use its action to polymorph into a Large crocodile-humanoid hybrid or into a Large crocodile, or back into its true form, which is humanoid. Its statistics, other than its size, are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.

Hold Breath. The weregator can hold its breath for 1 hour.

Multiattack. In crocodile form, the weregator makes one bite attack and one tail attack. In humanoid form, it makes two slam attacks. In hybrid form, it attacks like a crocodile, and it can replace one or both of its attacks with slam attacks.

Bite (Crocodile or Hybrid Form Only). Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 15 (2d10 + 4) piercing damage, and the target is grappled (escape DC 15). Until this grapple ends, the target is restrained, and the weregator can't bite another target. If the target is a humanoid, it must succeed on a DC 14 Constitution saving throw or be cursed with weregator lycanthropy.

Tail (Crocodile or Hybrid Form Only). Melee Weapon Attack: +7 to hit, reach 5 ft., one target not grappled by the weregator's bite. Hit: 13 (2d8 + 4) bludgeoning damage. If the target is a creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.

Slam (Humanoid or Hybrid Form Only). Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (3d6 + 4) bludgeoning damage in hybrid form, or 11 (2d6 + 4) bludgeoning damage in humanoid form.