Avocado Papaya

On concentration for at least 1 minute,  a burst of arcane energy erupts from the avocado and papaya, killing all creatures except spell caster and allies within a 3281 ft radius regardless of hit points, immunities, vulnerabilities, and resistances. Spell caster takes 3d10 necrotic damage while allies take no damage. In the one hour after the spell is cast, spell caster’s hit points are temporarily reduced to 0 before reaching hit point maximum which is reduced by 3d10 hit points after the one hour.