Celebi, the Time Deity

Cascade, Haste, Lifelink
Whenever Celebi the Time Master attacks, choose
one, Planeswalk, Target creature you control gains Lifelink or put a loyalty counter on each Planeswalker you conrol.
Whenever you gain life, draw cards equal to half of
the life you gained, rounded down.
Whenever you draw cards, gain life equal to half of
the cards you drew, rounded down.
{g}{w/u}{2}{t} You gain life equal to Celebi's power.