Wrath Of The Storm Lord

You create a powerful storm generated from your space that grows by 15 feet every round the spell is active. 

When the spell is cast a loud exposition is generated that can be heard up to 5 miles away. every creature within 60 feet of the caster must succeed on a con saving throw or be paralyzed and deafened until the end of your next turn. any creature within ten feet of the caster must succeed on a dex save or take 7D10 thunder damage and 3D8 lighting damage (if a creature or player with the ability evasion fails the con save evasion doesn't trigger on the second effect.).

on subsequent rounds while the spell is active you are restrained but immune to the spells effect. each round for the duration you may spend a bonus action to cast "Ball Lighting"(Fireball) centered on yourself. Any spells you cast that deal thunder or lightning damage deal Double damage. At the end of your turn on each round any creature within range takes 3D8 Lighting damage.

Once the spell ends your body is consumed by storm magic and  you take 2 points of exhaustion are stunned for 1 round and you take 12D6force damage if this effect would drop you to zero hit points your body is disintegrated. You cannot cast this spell again unless it is granted to you by Talos or Tempus or via the Wish spell.