Djinn of Perpetual Movement

Flying.
{u}{u},Discard a Card: Draw a Card.
{b}{b},Sacrifice a Creature:Create a 1/2 Black Djinn.
{r}{r},Sacrifice a Land: Search your library
for a Land and Put it in your hands.
{w}{w},Pay 2 Life: Gain 2 Life.
{g}{g},Put a -1/-1 Counter on a Creature you control:
Put a +1/+1 Counter on a Creature you Control.
"Keep growing, keep living."