Chuutuu'yl The Storm Lord

Primordial Spellcasting. The Chuutuu'yl can cast one of the following spells requiring no material components. Using its Intelligence as its spell casting ability. The distance of each spell when casted is increased by 20ft. (spell save DC 22 spell attack +15)

At Will(at 4th lvl): Shocking Grasp,(4d8) Call lightning, Chromatic Orb(lighting only), Counterspell, Ominous winds

4/Day Each(at 6th lvl):  Chain lightning, Lightning Bolt, Synaptic Static, Hold Monster, Jallarzi's Storm of Radiance, Elemental Bane

1/Day Each: Prismatic Spray, Earthquake. 

Storm of Destruction. Chuutuu'yl travels the planes with a mile wide storm that mirrors the spell Storm of Vengeance, However it is not an inherently magical affect. 

Summon the storm spawn(1/Short Rest)! The Chuutuu'yl can force 6 Storm Spawn to spawn instead of rolling. 

Legendary Resistance (4/day) When the Chuutuu'yl fails a saving throw he can choose to succeed instead. 

 Summon spawn. The Chuutuu'yl can create creatures called the storm spawn. It can summon up to 1d6 of them at a time. 

Multi Attack. The Chuutuu'yl makes 3 tentacle attacks or 2 paralyzing touch attacks. 

Tentacle. Melee Weapon Attack: +10 to hit, reach 15ft., 1 target. Hit: 15(3d6+5) slashing damage and 16 [rollable](2d10+5) lightning damage. When a creature is hit by this attack they are grappled and restrained (Escape DC 14). 

Paralyzing touch. Melee Weapon Attack: +10 to hit., reach 5ft., 1 target. Hit: 27 [rollable](5d8+5) lighting damage. When a creature is hit by this attack, they are paralyzed until the end of the Chuutuu'yls next turn. 

Lightning Strike (Recharge 5-6). The Chuutuu'yl fires up to 6 lightning bolts that are 100ft long and 5ft wide.  If a creature is hit by these bolts they take 53 (15d6) lighting damage, and suffer the stunned condition until the end of their next turn.  DC 19 WIS If the lightning bolt hits a creature it leaves residual electricity on the ground in a 10ft radius. This electricity last for 1 minute and deals 1d6 lighting damage if a creature enters the radius, ends their turn within the radius, moves within/into/out of the radius.  

Aftershock. The Chuutuu'yl emanates a radius of electricity affecting all creatures within a 30ft radius. Each creature within the radius must make a wisdom saving throw (DC 19). Failure: A creature takes 35 (10d6) lighting damage, is stunned until the end of the Chuutuu'yls next turn and is knocked prone. Success: A creature takes half damage and is not prone.  

Shunting Vortex. In a 20ft wide 40ft long line the Chuutuu'yl conjures pure force to move creatures away from it. Creatures caught in this line are pushed the length of the vortex, taking (5d6) force damage. Each creature makes a DC 23 DEX save to move only half the distance.  

 The Chuutuu'yl has 6 legendary actions which it can use at the end of another creatures turn to use one of the following actions. It regains these actions at the start of its turn. 

AfterShock. The Chuutuu'yl uses its Aftershock attack. 

Flee. The Chuutuu'yl moves up to its movement speed and shoots out a 10ft radius electric field that deals (2d6) lightning damage to all creatures within. Or casts shocking grasp up to twice then moves up to its movement speed. 

Shunting Vortex. The Chuutuu'yl uses its shunting vortex. 

Lightning Strike. (costs 2 actions). Chuutuu'yl uses his lightning strike if it is not on cool down. 

Summon the Storm Born. (costs 2 actions) Immediately summons 1d4 storm born.