Essence Absorption

Devoid (This card has no color.)
Essence Absorption deals 3 damage to any target
and you gain 3 life. If a permanent dealt damage
this way would be put into a graveyard this turn,
exile it instead.
"Once touched by their tendrils, there is little you can
do besides accept your demise and wait."
-Anowon, the Ruin Sage