Brother Polyphemus shoots huge tears, but he has a low rate of fire. Costs 150. Personally, I think that this toddler would be useful in many combos, but by itself it is not very good. For this, the price is low.
would it have piercing like polyphemus if it kills the enemy with a shot (example: a gaper that has 50% of its hp as dmg is killed and the shot will continue but have 50% until it hits a enemy unless it kills the monster with the weaker shot)