Efreet of Vengeance

Cumulative upkeep--Pay 1 life. (At the beginning of your upkeep, if this permanent is
on the battlefield, put an age counter on this permanent. Then you may pay 1 life for each
age counter on it. If you don't, sacrifice it.)
At the beginning of each end step, put a
+1/+1 counter on Efreet of Vengeance for
each 2 life you've lost this turn.