Multiattack

The sharkjaw skeleton makes one bite attack and one claw attack.

Bite

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage. If the target is a Large or smaller creature, it is grappled (escape DC 13). Until this grapple ends, the sharkjaw skeleton can bite only the grappled creature and has advantage on attack rolls to do so.

Claw

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) slashing damage.