Hold Breath: While out of water, the octopus can hold its breath for 30 minutes.
Underwater Camouflage: The octopus has advantage on
Dexterity (
Stealth) checks made while
Underwater.
Water Breathing: The octopus can breathe only
Underwater.
Tentacles:
Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 1
bludgeoning damage, and the target is
grappled (escape DC 10). Until this grapple ends, the octopus can't use its
Tentacles on another target.
Ink Cloud (Recharges after a Short or Long Rest): A 5-foot-radius cloud of ink extends all around the octopus if it is
Underwater. The area is
heavily obscured for 1 minute, although a significant current can disperse the ink. After releasing the ink, the octopus can use the
Dash Action as a bonus
Action.