Rowar, Walking Cataclysm

The hand size of your opponents are reduced
by 1 for each blue permanent they control.
{w}{w}: Destroy target blocking creature.
{b}{b}: For each card an opponent draws this turn,
you may pay 1 life, if you do, draw a card.
{r}{r}: Gain control of target artifact until end of
turn. Untap that artifact. It gains haste until
end of turn.
{g}{g}: Target creature loses flying
until end of turn.