Burning-Tree Emissary

When Burning-Tree Emissary enters the battlefield, add {R}{G} to your mana pool.

Legion Loyalist

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.

Goblin Grenade

As an additional cost to cast Goblin Grenade, sacrifice a Goblin. Goblin Grenade deals 5 damage to target creature or player.

Foundry Street Denizen

Whenever another red creature enters the battlefield under your control, Foundry Street Denizen gets +1/+0 until end of turn.

Devastating Summons

As an additional cost to cast Devastating Summons, sacrifice X lands. Put two X/X red Elemental creature tokens onto the battlefield.

Grim Lavamancer

{R}, {T}, Remove two cards in your graveyard from the game: Grim Lavamancer deals 2 damage to target creature or player.

Lightning Bolt

Lightning Bolt does 3 damage to one target.

Goblin Bushwhacker

Kicker {R} (You may pay an additional {R} as you cast this spell.) When Goblin Bushwhacker enters the battlefield, if it was kicked, creatures you control get +1/+0 and gain haste until end of turn.

Goblin Guide

Haste Whenever Goblin Guide attacks, defending player reveals the top card of his or her library. If it's a land card, that player puts it into his or her hand.

Bloodstained Mire

Wooded Foothills

Arid Mesa

Reckless Bushwhacker

Fanatical Firebrand

Haste {T}, Sacrifice Fanatical Firebrand: It deals 1 damage to any target.

Mountain

({T}: Add {R}.)