Simic Hive

Graft 4 (This land enters the battlefield with four
+1/+1 counter on it. Whenever a creature enters the
battlefield, you may move a +1/+1 counter from this
land onto it.)
{t}: Add {g}{u}
{1} {g/u}, {t}: Move any number of +1/+1 counters
from target creature onto another target creature
with the same controller.