Booyah Bomb

Upon using the booyah bomb, you rise 10 feet into the air, charging an orb of ink in your hand. this spell takes 5 actions. the first is to rise and begin charging, the next three, to continue charging, and the last one to throw it. anyone can spent their action to help charge, but only the caster can start it and throw it. while in the air, your ac increases by 4, but taking damage will cancel the spell. the booyah  bomb can be thrown 100 ft, but any with contact with objects or people will set it off. once it hits an object, it will explode in a 40 ft sphere dealing 10d12 dmg to any enemies caught inside.