Electron Blast

Lightning strikes from the caster and fires in random directions. All creatures within 50 feet of the caster must roll a d20 (the caster can choose who has disadvantage), and anyone who rolls a 10 or less is struck by one of the lightning bolts. Each creature who is struck by a lightning bolt must make a Dexterity saving throw (who wears a metal armor has disadvantage on the saving throw). A target takes 3d12 lightning damage on a failed save, or half as much damage on a successful one. Furthermore, anyone who fails their saving throw is pushed 10 feet away from the caster. If more creatures has to go in the same space, the one with higher Costitution or size goes in the space, the other takes 1d6 buldeging damage and he stays in his initial position. If someone is pulled in the target's space they both take 1d6 bludgeoning damage and stay in their initial position. This spell can't move creature of huge or of bigger sizes In addition, the electric blast generates a short magnetic field around the caster: until the end of the caster's next turn, all metal weapon / projectile / limb attacks against the caster are made with disadvantage.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d12 for each slot level above 2nd.