Volibear

Winter Storm Walker: This creature has resistance to Lightning, Thunder and Cold Damage. 

Freezing Claws: When Volibear gets below 80 HP, Volibear goes into a fury on his next turn. All of his attacks with his claws do an extra 2D6 Cold damage, and are made with advantage. 

Sky Splitter: Volibear as an action can call down a large bolt of lightning up to 60ft away in a 15ft Cube on an area. creatures in that area must make a DEX 18 Save or take 4D8 Lightning Damage and 4D8 Cold Damage, and have their movement slowed by half for one turn. Creatures that save take half damage and are not affected by this effect. 

Relentless Storm: Instead of casting Sky Splitter, Volibear can summon a storm around him of cold and lightning. Creatures within 10ft of Volibear will take 2D8 Cold and 2D8 Lightning Damage unless they make a DEX 18 Saving Throw. On a save they take no damage. 

Thundering Roar: Volibear roars out as a bonus action on his turn, and creatures within 30ft must make a WIS 18 Save or be frightened by Volibear until they save at the start of their next turn. 

Multi-Attack: Volibear can make three attacks, only  one being a bite attack. 

Claw Strike: Melee attack: + 12 to Hit, Reach 10ft, One Target. 2D8 + 6 Slashing Dmg. (+2D6 if Freezing Claws is active)

Bite. Melee Weapon Attack: +12 to hit, reach 10 ft., One target.  (2d8 + 6) [Piercing] damage. The target must make a STR 18 Saving throw or be grappled by Volibear. As a bonus action Volibear can throw the target in its mouth 20 ft in any direction. If the target hits the ground, it takes 1D10 damage. If the target hits a structure, it takes 2D10 Damage. 

Thundering Roar: Volibear roars out as a bonus action on his turn, and creatures within 30ft must make a WIS 18 Save or be frightened by Volibear until they save at the start of their next turn.

Opportunity Attack. Volibear can make one Claw attack or Bite attack as a reaction to a creature moving out of its attack range. (10ft). Claws can add the damage from the Freezing claws. Volibears Bite attack can grapple, but cant throw the creature until its next turn. 

Volibear can take the below actions on another creatures end of turn. Volibear has 3 Legendary actions per round. 

Claw Attack: one creature within range. 

Bite Attack: Take a bite attack on a creature within range

Rush: Volibear can dash up to half its movement speed. 

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Mythic Action Name (Costs # Actions). Enter the description for your mythic action.