Corrupted Life Drainer

Devoid, equip {4}
Equipped creature gets +2/+2.
Equipped creature have phasing and "{t}: Create
two Drained tokens attach to target creature. You
gain {2}." and "{c}{u}: Target permanent phases
out. Activate this ability only once a turn."
(Treat phased out permanent as if it doesn't exist in
the game until it phases in.)