Act of Treason | Sorcery | | Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.) | Min Yum
Arc Lightning | Sorcery | | Arc Lightning deals 3 damage divided as you choose among one, two, or three targets. | Seb McKinnon
Barrage of Boulders | Sorcery | | Barrage of Boulders deals 1 damage to each creature you don't control.
Ferocious — If you control a creature with power 4 or greater, creatures can't block this turn. | Zoltan Boros
Bloodfire Expert | Creature | Efreet Monk | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | Raymond Swanland
Bloodfire Mentor | Creature | Efreet Shaman | {2}{U}, {T}: Draw a card, then discard a card. | Chase Stone
Dragon Grip | Enchantment | Aura | Ferocious — If you control a creature with power 4 or greater, you may cast Dragon Grip as though it had flash. (You may cast it any time you could cast an instant.)
Enchant creature
Enchanted creature gets +2/+0 and has first strike. | Jason Rainville
Goblinslide | Enchantment | | Whenever you cast a noncreature spell, you may pay {1}. If you do, create a 1/1 red Goblin creature token with haste. | Kev Walker
Hordeling Outburst | Sorcery | | Create three 1/1 red Goblin creature tokens. | Zoltan Boros
Howl of the Horde | Sorcery | | When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
Raid — If you attacked this turn, when you cast your next instant or sorcery spell this turn, copy that spell an additional time. You may choose new targets for the copy. | Slawomir Maniak
Mardu Blazebringer | Creature | Ogre Warrior | When Mardu Blazebringer attacks or blocks, sacrifice it at end of combat. | Peter Mohrbacher
Trumpet Blast | Instant | | Attacking creatures get +2/+0 until end of turn. | Steve Prescott
Winterflame | Instant | | Choose one or both —
• Tap target creature.
• Winterflame deals 2 damage to target creature. | Richard Wright
Jeskai Ascendancy | Enchantment | | Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures.
Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card. | Dan Scott
Jeskai Charm | Instant | | Choose one —
• Put target creature on top of its owner's library.
• Jeskai Charm deals 4 damage to target opponent or planeswalker.
• Creatures you control get +1/+1 and gain lifelink until end of turn. | Mathias Kollros
Mantis Rider | Creature | Human Monk | Flying, vigilance, haste | Johann Bodin
Crackling Doom | Instant | | Crackling Doom deals 2 damage to each opponent. Each opponent sacrifices a creature with the greatest power among creatures that player controls. | Yohann Schepacz
Mardu Ascendancy | Enchantment | | Whenever a nontoken creature you control attacks, create a 1/1 red Goblin creature token that's tapped and attacking.
Sacrifice Mardu Ascendancy: Creatures you control get +0/+3 until end of turn. | Jason Chan
Mardu Charm | Instant | | Choose one —
• Mardu Charm deals 4 damage to target creature.
• Create two 1/1 white Warrior creature tokens. They gain first strike until end of turn.
• Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card. | Mathias Kollros
Savage Knuckleblade | Creature | Ogre Warrior | {2}{G}: Savage Knuckleblade gets +2/+2 until end of turn. Activate only once each turn.
{2}{U}: Return Savage Knuckleblade to its owner's hand.
{R}: Savage Knuckleblade gains haste until end of turn. | Chris Rahn
Temur Ascendancy | Enchantment | | Creatures you control have haste.
Whenever a creature with power 4 or greater enters the battlefield under your control, you may draw a card. | Jaime Jones
Temur Charm | Instant | | Choose one —
• Target creature you control gets +1/+1 until end of turn. It fights target creature you don't control.
• Counter target spell unless its controller pays {3}.
• Creatures with power 3 or less can't block this turn. | Mathias Kollros
Trap Essence | Instant | | Counter target creature spell. Put two +1/+1 counters on up to one target creature. | Raymond Swanland
Jeskai Banner | Artifact | | {T}: Add {U}, {R}, or {W}.
{U}{R}{W}, {T}, Sacrifice Jeskai Banner: Draw a card. | Daniel Ljunggren
Mardu Banner | Artifact | | {T}: Add {R}, {W}, or {B}.
{R}{W}{B}, {T}, Sacrifice Mardu Banner: Draw a card. | Daniel Ljunggren
Temur Banner | Artifact | | {T}: Add {G}, {U}, or {R}.
{G}{U}{R}, {T}, Sacrifice Temur Banner: Draw a card. | Daniel Ljunggren