Frost Walker | Creature | Elemental | When Frost Walker becomes the target of a spell or ability, sacrifice it. | Mike Bierek
Marang River Prowler | Creature | Human Rogue | Marang River Prowler can't block and can't be blocked.
You may cast Marang River Prowler from your graveyard as long as you control a black or green permanent. | Yefim Kligerman
Mindscour Dragon | Creature | Dragon | Flying
Whenever Mindscour Dragon deals combat damage to an opponent, target player mills four cards. | Wesley Burt
Mistfire Adept | Creature | Human Monk | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, target creature gains flying until end of turn. | Clint Cearley
Renowned Weaponsmith | Creature | Human Artificer | {T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts.
{U}, {T}: Search your library for a card named Heart-Piercer Bow or Vial of Dragonfire, reveal it, put it into your hand, then shuffle. | Eric Deschamps