Abstract Confinement

Abstract Confinement enters the battlefield
with {e}{e}{e} (three energy counters).
At the beginning of your upkeep, if you have
exactly 20 life, remove a {e} from Abstract
Confinement.
As long as Abstract Confinement has no {e}
on it, creatures you control get +3/+3 and
gain hexproof and indestructible.