Exhaust

You sense imminent danger, you brace yourself for impact. You are unable to do other actions while braced. You gain resistance to incoming physical attacks, you take double damage from radiant spells. Upon successful brace, exhaust smoke, forcing all Medium or Small creatures in a 5 foot sphere radius to make a 14 Strength saving throw, if it fails, they are forced 15 feet prone dealing 1d10 fire damage to all enemies in the blast.