Ocean Deity. After rolling initiative, all creatures fighting Cnidari take 5d12 Force Damage. In addition, any spells cast to control water cannot negate Cnidari's control over water.
King of the Sea. Any sea creature that enters battle is immediately charmed by Cnidari, and will fight on its side. Even creatures summoned by the player must make a WIS saving throw of 23 in order to resist the call. Sea Creatures normally immune to being charmed instead get advantage on this throw.
Spellcasting. Cnidari is a 20th level caster at least, and can use the following spells.
Cantrips (At Will): Acid Splash, Frostbite, Poison spray, Shape Water, True Strike, Infestation
1st level (5 slots): Arcane Weapon, Create or Destroy Water, Detect poison and disease, Entangle, Purify food and drink
2nd level (4 slots): Alter Self, Magic weapon, Misty Step, Snilloc’s Snowball Swarm
3rd level (3 slots): Counterspell, Stinking cloud, Tidal Wave
4th level (3 slots): Control Water, Ice Storm, Polymorph
5th level (2 slots): Cloudkill, Cone of cold
6th level (2 slots): Freezing sphere, Investiture of Cold
7th level (1 slot): Regenerate
8th level (1 slot): Tsunami
9th level (1slot): True Polymorph
Deadly Sting. Uses a tentacle to lash out at at enemy up to 20 feet away, dealing 6d12 poison damage and poisoning the creature.
Whale's Song. An intensely loud humming sound that deals 7d10 Thunder Damage to everything within 50 feet of Cnidari.
Great Tsunami. Once per long rest, Cnidari can call a wall of water 50 feet wide to crash down on a 60 foot long area. This wall of water deals 9d12 damage and requires no spell slots.
Legendary Sting. Can use the effects of Deadly sting a second time on the same enemy if it hit the first time, forcing them to make a con save of 23. If failed, they incur 6d12 poison damage again, and take half as much on a successful save.
Description
At first glance, it looks like an enormous jellyfish with a bell easily 100+ feet across and tentacles measuring nearly 500 feet long, but if you look closer, it also has hundreds of blue eyes lining the inside of its bell, and a huge human-like skull at the center of the bell which it uses to commune verbally.
Cnidari is extremely aloof and prefers not to be bothered by anyone. Rather than rule over its people, Cnidari simply enjoys roaming its domain minding its own business. It takes pleasure in simplicity and encourages self reliance on those who worship it. When it tires if roaming it will change into its humanoid form to live on its favorite island for a few years.
Like the other gods, Cnidari cannot truly be killed and will always return to the world if its mortal body dies, though there may be ways of delaying its return.
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