Whale Pishacha (5e Creature)
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Gargantuan fiend, unaligned
Saving Throws Str +12, Con +9
Massive Lungs. The pishacha can hold its breath for 90 minutes. The pishacha won't lose its held breath as a result of damage.
Multiattack. The pishacha makes two attacks with its trunk or stomp; or one of the prior attacks and uses its blast.
Trunk. Melee Weapon Attack: +12 to hit, reach 15 ft., one target. Hit: 14 (2d6 + 7) bludgeoning damage and the target must succeed on a DC 20 Strength saving throw or be pushed 20 feet away from the pishacha and be knocked prone.
Stomp. Melee Weapon Attack: +12 to hit, reach 10 ft., one prone creature. Hit: 23 (3d10 + 7) bludgeoning damage.
Blast. The pishacha exhales a torrent of water in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 17 Dexterity saving throw. On a failed save, a creature takes 14 (4d6) bludgeoning damage and is pushed 30 feet away from the pishacha. On a successful save, a creature takes half as much damage and isn't pushed.
Bite. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 62 (10d10 + 7) bludgeoning damage. If the target hit is a Large or smaller creature, the creature is grappled (escape DC 17). While the creature is grappled this way, it is restrained. The pishacha can grapple 4 Large creatures, 16 Medium or Small creatures, or 1,000 Tiny creatures this way.
Swallow. The pishacha makes one bite attack against all creatures it has grappled in its mouth. If the attack hits, the creature is also swallowed, and the grapple ends. While swallowed, the target is blinded and restrained, it has total cover against attacks and other effects outside the pishacha, and it takes 55 (10d10) acid damage at the start of each of the pishacha's turns. A pishacha can have up to 4 Large creatures, 16 Medium or Small creatures, or 1,000 Tiny creatures swallowed at once.
Once normal animals, the pishacha have been twisted with dark magic. There are four common forms of pishacha: a tiger, an elephant, a crocodile, and a whale. In battle, pishacha must be controlled directly by powerful magic users, typically those that created them in the first place. A pishacha's monstrous appearance and enhanced abilities do not disappear when this connection is lost, however, their mind returns to that of their base animal. In the case of whales, their souls have been combined with those of battle elephants, becoming one of the most dangerous creatures to walk the land. Often referred to as the legendary Makara, it is both a powerful naval unit and an unstoppable siege engine.