Temur Battle Rage

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.) Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Burning-Tree Emissary

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

Become Immense

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Target creature gets +6/+6 until end of turn.

Monastery Swiftspear

Haste Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Street Wraith

Swampwalk Cycling—Pay 2 life. (Pay 2 life, Discard this card: Draw a card.)

Vengevine

Haste Whenever you cast a spell, if it's the second creature spell you cast this turn, you may return Vengevine from your graveyard to the battlefield.

Copperline Gorge

Copperline Gorge enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {R} or {G} to your mana pool.

Lightning Bolt

Lightning Bolt does 3 damage to one target.

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

Faithless Looting

Reckless Bushwhacker

Insolent Neonate

Hollow One

Stomping Ground

({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.

Leyline of the Void

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield. If a card would be put into an opponent's graveyard from anywhere, exile it instead.

Mountain

({T}: Add {R}.)