Syndicate Extorter

Ninjutsu {u/b}{w/b}({u/b}{w/b}, Return an unblocked
attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever you activate a Ninjutsu you may
pay an additional {1}. If you do, each opponent
loses 1 life and you gain life equal to the life loss.
Ninjas you control have 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.)