Reef Guardian

{2}{u}{g}: Look at the top two cards of your
library. You may reveal a creature card from
among them with mana value less than
Reef Guardian's power and put it into your
hand. Put all cards not put into your hand
this way on the bottom of your library in a
random order. If you didn't put a card in
your hand this way, put a +1/+1 counter on
Reef Guardian.