Fang Rawlins, The Phantom

Haste, First Strike, Menace, Vigilance

Whenever Fang deals combat damage to a player,
you may pay {1}{b/r}. If you do, roll a d20.
1 -9| Fang gains indestructible until the beginning
of your next upkeep.
10 -17| Fang deals damage equal to his power to
target creature.
18 -20| Untap all creatures you control, there is an additional combat phase.