Coiled Tinviper

Wild Wurm

When Wild Wurm enters the battlefield, flip a coin. If you lose the flip, return Wild Wurm to its owner's hand.

Rolling Thunder

Rolling Thunder deals X damage divided as you choose among any number of targets.

Firefly

Flying
{R}: Firefly gets +1/+0 until end of turn.

Mountain

Goblin Bombardment

Sacrifice a creature: Goblin Bombardment deals 1 damage to any target.

Maze of Shadows

{T}: Add {C}.
{T}: Untap target attacking creature with shadow. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Mogg Fanatic

Sacrifice Mogg Fanatic: It deals 1 damage to any target.

Plains

Fireslinger

{T}: Fireslinger deals 1 damage to any target and 1 damage to you.

Flowstone Giant

{R}: Flowstone Giant gets +2/-2 until end of turn.

Sandstone Warrior

First strike (This creature deals combat damage before creatures without first strike.)
{R}: Sandstone Warrior gets +1/+0 until end of turn.

Magmasaur

Magmasaur enters the battlefield with five +1/+1 counters on it.
At the beginning of your upkeep, you may remove a +1/+1 counter from Magmasaur. If you don't, sacrifice Magmasaur and it deals damage equal to the number of +1/+1 counters on it to each creature without flying and each player.

Flowstone Salamander

{R}: Flowstone Salamander deals 1 damage to target creature blocking it.

Disenchant

Searing Touch

Buyback {4} (You may pay an additional {4} as you cast this spell. If you do, put this card into your hand as it resolves.)
Searing Touch deals 1 damage to any target.

Furnace of Rath

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Soltari Guerrillas

Shadow (This creature can block or be blocked by only creatures with shadow.)
{0}: The next time Soltari Guerrillas would deal combat damage to an opponent this turn, it deals that damage to target creature instead.

Lightning Blast

Lightning Blast deals 4 damage to any target.

Blood Frenzy

Cast this spell only before the combat damage step.
Target attacking or blocking creature gets +4/+0 until end of turn. Destroy that creature at the beginning of the next end step.

Lightning Elemental

Haste (This creature can attack and {T} as soon as it comes under your control.)

Kindle

Kindle deals X damage to any target, where X is 2 plus the number of cards named Kindle in all graveyards.

Squee's Toy

{T}: Prevent the next 1 damage that would be dealt to target creature this turn.

Tahngarth's Rage

Enchant creature
Enchanted creature gets +3/+0 as long as it's attacking. Otherwise, it gets -2/-1.