Crystal Lightning

Note, this spell is a dual school spell, considered as Abjuration Evocation.

Lightning falls from the sky and envelops your form with a sphere of crystalized lightning. Any creature within a ten-foot radius must make a (Dex) saving throw against your spell save DC. On a failed save the target takes 7d8 lightning damage and is paralyzed until the end of your next turn. On a success, the creature takes half damage and is not paralyzed.

Until your next turn, you are shielded by lightning, all ranged attacks are made with disadvantage and any creature that makes a melee attack within ten feet must make a (Dex) saving throw. On a failure, the creature takes 4d8 lightning damage and is paralyzed until the end of your next turn, the attack fails. On a success, they take half damage and are not paralyzed.

At the start of your next turn, the lightning releases in a wave of thunder, creatures within a 15-foot radius must make a (Dex) save against your spell save DC. On a failure, the creature takes 3d8 thunder damage and is pushed back 10 feet. On a success, the creature takes half damage and is not pushed back.

The excess electrical charge within your body remains, discharging for the duration of the spell. For the remainder of the spell's duration, you may use a bonus action to direct the discharge at a creature within 15-feet. If a creature is not specified the lightning will discharge towards the closest creature. That creature must make a (Dex) saving throw against your spell save DC. On a failure, the creature takes 3d8 lightning damage or half damage on a success. If there are no creatures within 15 feet, or the spell ends early, the caster takes 1d4 lightning damage for every round left of the spell.