Urvesune

Divinity: Will never age and can not be killed by normal means.

Blood God: controls afflicted dragons.

Sea God: controls sea dwellers.

Legendary: A being of pure legend with tremendous power.

 Urvesune's Bite Melee Weapon Attack: +10 to hit, reach 60 ft., 1 target. Hit: 47 (6d10 + 10) [Piercing] damage. 

Urvesune's Barbs RangedWeapon Attack: +7 to hit, range 120/360 ft., 10 target. Hit: 19 (3d4 + 12) [Piercing] damage. Creatures hit must succeed on a DC 21 CON save or be poisoned for 1d4 rounds.

Body Slam Melee Weapon Attack: +10 to hit, reach 250 ft., 1 target. Hit: 21(9d4 + 4) [Bludgeoning] damage. Creatures hit are knocked prone.

Summon water elemental: Urvesune summons 2 water elementals.

Opportunity Attack Urvesune attacks a creature with a bite attack if the attempt to move out of his melee range when they start their turn in it.

5 actions per round.

 Bite (Costs 1 Actions). Urvesune does his bite attack.

Barbs (Costs 1 Actions). Urvesune does his barb attack.

Body Slam (Costs 1 Actions). Urvesune does his body slam attack.

1 action per round.

Devour (Costs 1 Actions). Urvesune swallows a creature within melee range. A creature that is swallowed takes 27 (5d10) + 5 acid damage at the start of each of their turns that they're swallowed. Urvesune will regurgitate them if he loses 100 hit points in a single round.

Regenerate (Costs 1 Action). Urvesune regains 30 hit points at the start of his turn for 1d4 rounds.