Moonwhisper's Impulse

Choose target attacking creature. Create a
non-legendary token copy of that creature with deathtouch, tapped and attacking target player
or planeswalker of your choice. Sacrifice that creature at the beginning of the next end step.

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.)