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.)
"Well, I always wanted a waterfront view."
—Spider-Man
NM-Mint Foil - $2.50
Lightly Played Foil - $2.30
Moderately Played Foil - $2.00
Heavily Played Foil - $1.80
Damaged Foil - $1.30
NM-Mint Foil Non English - $2.50
Lightly Played Foil Non English - $2.30
Moderately Played Foil Non English - $2.00
Heavily Played Foil Non English - $1.80
Damaged Foil Non English - $1.30