Blood Frenzy. The aberrant shark has advantage on melee attack rolls against any creature that doesn't have all its hit points.
Water Breathing. The aberrant shark can breathe only underwater.
Multiattack. The aberrant shark makes 1 bite plus 4 claw attacks or 6 claw attacks.
Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 43 (7d10 + 6) piercing damage.
Description
A giant shark is 30 feet long and normally found in deep oceans. Utterly fearless, it preys on anything that crosses its path, including whales and ships.
This species were transformed into an aberrant form by the contact with the corrupted blood of a Tarrasque that fought against a stone collossus in the undersea. It has a hard carapace and resistance to some types of damage, as if it were a fiendish shark. It's skin has also a lot of big pores in it's skin from which six giant aberrant crablike claws emerged.