Bloodfire Enforcers | Creature | Human Monk | Bloodfire Enforcers has first strike and trample as long as an instant card and a sorcery card are in your graveyard. | Yefim Kligerman
Break Through the Line | Enchantment | | {R}: Target creature with power 2 or less gains haste until end of turn and can't be blocked this turn. | Clint Cearley
Dragonrage | Instant | | Add {R} for each attacking creature you control. Until end of turn, attacking creatures you control gain "{R}: This creature gets +1/+0 until end of turn." | Tomasz Jedruszek
Friendly Fire | Instant | | Target creature's controller reveals a card at random from their hand. Friendly Fire deals damage to that creature and that player equal to the revealed card's mana value. | Anthony Palumbo
Humble Defector | Creature | Human Rogue | {T}: Draw two cards. Target opponent gains control of Humble Defector. Activate only during your turn. | Slawomir Maniak
Hungering Yeti | Creature | Yeti | As long as you control a green or blue permanent, you may cast Hungering Yeti as though it had flash. (You may cast it any time you could cast an instant.) | Tyler Jacobson
Pyrotechnics | Sorcery | | Pyrotechnics deals 4 damage divided as you choose among any number of targets. | Matt Stewart
Rageform | Enchantment | | When Rageform enters the battlefield, it becomes an Aura with enchant creature. Manifest the top card of your library and attach Rageform to it. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
Enchanted creature has double strike. (It deals both first-strike and regular combat damage.) | Richard Wright
Shockmaw Dragon | Creature | Dragon | Flying
Whenever Shockmaw Dragon deals combat damage to a player, it deals 1 damage to each creature that player controls. | Alejandro Mirabal
Vaultbreaker | Creature | Orc Rogue | Whenever Vaultbreaker attacks, you may discard a card. If you do, draw a card.
Dash {2}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.) | Wayne Reynolds
Wild Slash | Instant | | Ferocious — If you control a creature with power 4 or greater, damage can't be prevented this turn.
Wild Slash deals 2 damage to any target. | Raymond Swanland