The Kingpin of Crime (MSH-220) [Marvel Super Heroes]

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.)

Whenever you attack, you may pay 2 life. If you do, until end of turn, creatures you control with toughness greater than their power assign combat damage equal to their toughness rather than their power.