Siege Dragon

Flying
When this creature enters, destroy all Walls your opponents control.
Whenever this creature attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.

Mountain

Nest Robber

Goblin Arsonist

When this creature dies, you may have it deal 1 damage to any target.

Molten Ravager

{R}: This creature gets +1/+0 until end of turn.

Immortal Phoenix

Flying (This creature can't be blocked except by creatures with flying or reach.)
When this creature dies, return it to its owner's hand.

Goblin Gathering

Create a number of 1/1 red Goblin creature tokens equal to two plus the number of cards named Goblin Gathering in your graveyard.

Burn Bright

Creatures you control get +2/+0 until end of turn.

Inescapable Blaze

This spell can't be countered.
Inescapable Blaze deals 6 damage to any target.

Ogre Battledriver

Whenever another creature you control enters, that creature gets +2/+0 and gains haste until end of turn. (It can attack and {T} this turn.)

Raid Bombardment

Whenever a creature you control with power 2 or less attacks, this enchantment deals 1 damage to the player or planeswalker that creature is attacking.

Volcanic Dragon

Goblin Tunneler

{T}: Target creature with power 2 or less can't be blocked this turn.

Shock

Storm Strike

Target creature gets +1/+0 and gains first strike until end of turn. Scry 1.

Goblin Trashmaster

Other Goblins you control get +1/+1.
Sacrifice a Goblin: Destroy target artifact.