Lost Empires of Faerûn (3.5e)
Shapechanger. The wereshark can use its action to polymorph into a shark-humanoid hybrid or into a hunter shark, 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.
Amphibious (Hybrid Form Only). The wereshark can breathe air & water.
Blood Frenzy. The wereshark has advantage on melee attack rolls against any creature that doesn't have all its hit points.
Water Breathing (Shark Form Only). The wereshark can breathe only underwater.
Multiattack. The wereshark makes two melee attacks, only one of which can be a bite attack or a harpoon attack.
Bite (Shark or Hybrid Form Only). Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage. If the target is a humanoid, it must succeed on a DC 12 Constitution saving throw or be cursed with werewolf lycanthropy.
Slam (Hybrid Form Only). Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 9 (2d4 + 4) bludgeoning damage.
Harpoon (Humanoid or Hybrid Form Only). Melee or Ranged Weapon Attack: +6 to hit, reach 5' or range 20'/60', one target. Hit: 11 (2d6 + 4) piercing damage. If the target is a Medium or smaller creature, the wereshark can pull it 10' closer.
Scimitar (Humanoid or Hybrid Form Only). Melee Weapon Attack: +6 to hit, reach 5', one target. Hit: 7 (1d6 + 4) slashing damage.
Coastal, Underwater