Yamato

Evocation Casting Time: 1 action Range: 60 feet Components: V, S, M (a feather) Duration: Concentration, up to 1 minute You summon a powerful storm, with howling winds and lightning strikes. Each creature within a 60-foot radius must make a Dexterity saving throw or take 5d10 lightning damage and be pushed back 10 feet. The area becomes difficult terrain for the duration. Your allies who stand in the storm suffer no damage, get 24 temporary hit points for the upcoming 3 turns and a +5 feet of movement speed for the rest of the fight or until you discontinue the effect.