Krosan Vorine 
Creature — Cat Beast
Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.) This creature can't be blocked by more than one creature.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL