Its first effect, to summon a Frog monster by detaching a material, isn't so bad, but the second is fairly annoying. It lets players discard or Tribute an Aqua monster, including itself, to negate any effect and destroy the card it came from once per turn. In addition, it can return ...
Speaking of which, the Yugioh anime's first season had a spell card called Living Arrow, which allows you to take a spell card on your side and shoot it into an enemy. This could be a spell that you can normally not target enemies with, a debuff placed on you or an ally of yours...