Tainted Perception

{r}{b}: Switch Target Creature's Power and
Toughness Values until End of Turn.
{r}{r}{b}{b}: All Creatures deal Damage Equal
to their Power, to their Controller.
"Preconceived by Projected Expectations: Target
Player's Vision becomes Tainted. Player Sees what
Player wants to See. Player has lost all touch with
Common Sense Reality. The Player Sees Darkness
in Light. Player is Deceived." -Amun-Ra