Whenever you cast a blue spell, if Hydro-Man is a creature, he gets +1/+1 until end of turn. At the beginning of your end step, untap Hydro-Man. Until your next turn, he becomes a land and gains "T: Add U." (He's not a creature during that time.)
Rarity:R
#:33
Card Type:Legendary Creature — Elemental Villain
P / T:2 / 2
Flavor:"Well, I always wanted a waterfront view." —Spider-Man
