Razakar, Fanged Steed

Flying, extort (Whenever you cast a spell, you
may pay {w/b}. If you do, each opponent loses 1 life and
you gain life that much life.)
Whenever you extort a spell, draw a card and lose
1 life. This ability triggers only once per spell.
Partner with Xaviere, Bat Rider.
"Who's a good bat? You are, yes you are!"
—Xaviere, Bat Rider