
Five-Alarm Fire | Enchantment | | Whenever a creature you control deals combat damage, put a blaze counter on Five-Alarm Fire.
Remove five blaze counters from Five-Alarm Fire: It deals 5 damage to any target. | Karl Kopinski

Legion Loyalist | Creature | Goblin Soldier | Haste
Battalion — Whenever Legion Loyalist and at least two other creatures attack, creatures you control gain first strike and trample until end of turn and can't be blocked by creature tokens this turn. | Eric Deschamps

Molten Primordial | Creature | Avatar | Haste
When Molten Primordial enters the battlefield, for each opponent, gain control of up to one target creature that player controls until end of turn. Untap those creatures. They gain haste until end of turn. | Stephan Martiniere

Wrecking Ogre | Creature | Ogre Warrior | Double strike
Bloodrush — {3}{R}{R}, Discard Wrecking Ogre: Target attacking creature gets +3/+3 and gains double strike until end of turn. | Nils Hamm

Assemble the Legion | Enchantment | | At the beginning of your upkeep, put a muster counter on Assemble the Legion. Then create a 1/1 red and white Soldier creature token with haste for each muster counter on Assemble the Legion. | Eric Deschamps

Firemane Avenger | Creature | Angel | Flying
Battalion — Whenever Firemane Avenger and at least two other creatures attack, Firemane Avenger deals 3 damage to any target and you gain 3 life. | Wayne Reynolds

Foundry Champion | Creature | Elemental Soldier | When Foundry Champion enters the battlefield, it deals damage to any target equal to the number of creatures you control.
{R}: Foundry Champion gets +1/+0 until end of turn.
{W}: Foundry Champion gets +0/+1 until end of turn. | Todd Lockwood

Spark Trooper | Creature | Elemental Soldier | Trample, lifelink, haste
At the beginning of the end step, sacrifice Spark Trooper. | James Ryman

Boros Reckoner | Creature | Minotaur Wizard | Whenever Boros Reckoner is dealt damage, it deals that much damage to any target.
{R/W}: Boros Reckoner gains first strike until end of turn. | Howard Lyon

Clan Defiance | Sorcery | | Choose one or more —
• Clan Defiance deals X damage to target creature with flying.
• Clan Defiance deals X damage to target creature without flying.
• Clan Defiance deals X damage to target player or planeswalker. | Daarken

Gruul Ragebeast | Creature | Beast | Whenever Gruul Ragebeast or another creature enters the battlefield under your control, that creature fights target creature an opponent controls. | Dave Kendall

Rubblehulk | Creature | Elemental | Rubblehulk's power and toughness are each equal to the number of lands you control.
Bloodrush — {1}{R}{G}, Discard Rubblehulk: Target attacking creature gets +X/+X until end of turn, where X is the number of lands you control. | Raymond Swanland

Signal the Clans | Instant | | Search your library for three creature cards and reveal them. If you reveal three cards with different names, choose one of them at random and put that card into your hand. Shuffle the rest into your library. | Dave Kendall

Rubblebelt Raiders | Creature | Human Warrior | Whenever Rubblebelt Raiders attacks, put a +1/+1 counter on it for each attacking creature you control. | Chippy

Sacred Foundry | Land | Mountain Plains | ({T}: Add {R} or {W}.)
As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. | Sam Burley

Stomping Ground | Land | Mountain Forest | ({T}: Add {R} or {G}.)
As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped. | David Palumbo