Act of Treason

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.)

Maniacal Rage

Enchant creature
Enchanted creature gets +2/+2 and can't block.

Shivan Dragon

Flying (This creature can't be blocked except by creatures with flying or reach.)
{R}: Shivan Dragon gets +1/+0 until end of turn.

Rubblebelt Recluse

Rubblebelt Recluse attacks each combat if able.

Goblin Cohort

Goblin Cohort can't attack unless you've cast a creature spell this turn.

Chandra's Outrage

Chandra's Outrage deals 4 damage to target creature and 2 damage to that creature's controller.

Goblin Assailant

Chandra's Magmutt

{T}: Chandra's Magmutt deals 1 damage to target player or planeswalker.

Infuriate

Target creature gets +3/+2 until end of turn.

Thundermaw Hellkite

Flying
Haste (This creature can attack and {T} as soon as it comes under your control.)
When Thundermaw Hellkite enters, it deals 1 damage to each creature with flying your opponents control. Tap those creatures.

Mountain

Goblin Smuggler

Haste (This creature can attack and {T} as soon as it comes under your control.)
{T}: Another target creature with power 2 or less can't be blocked this turn.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Fearless Halberdier

Engulfing Eruption

Engulfing Eruption deals 5 damage to target creature.

Shock

Fanatical Firebrand

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