Blind Obedience 6 (Gatecrash)

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Artifacts and creatures your opponents control enter tapped.

NM - $9.50
LP - $7.50
MP - $5.50
HP - $4.00
DMG - $2.00