Fiery Hellhound

{R}: Fiery Hellhound gets +1/+0 until end of turn.

Magma Phoenix

Flying
When Magma Phoenix dies, it deals 3 damage to each creature and each player.
{3}{R}{R}: Return Magma Phoenix from your graveyard to your hand.

Seismic Strike

Seismic Strike deals damage to target creature equal to the number of Mountains you control.

Trumpet Blast

Attacking creatures get +2/+0 until end of turn.

Lava Axe

Lava Axe deals 5 damage to target player or planeswalker.

Berserkers of Blood Ridge

Berserkers of Blood Ridge attacks each combat if able.

Wall of Fire

Defender (This creature can't attack.)
{R}: Wall of Fire gets +1/+0 until end of turn.

Sparkmage Apprentice

When Sparkmage Apprentice enters, it deals 1 damage to any target.

Panic Attack

Up to three target creatures can't block this turn.

Goblin Piker

Raging Goblin

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

Viashino Spearhunter

First strike (This creature deals combat damage before creatures without first strike.)

Shatter

Firebreathing

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

Capricious Efreet

At the beginning of your upkeep, choose target nonland permanent you control and up to two target nonland permanents you don't control. Destroy one of them at random.

Pyroclasm

Pyroclasm deals 2 damage to each creature.

Shock

Dragon's Claw

Whenever a player casts a red spell, you may gain 1 life.

Yawning Fissure

Each opponent sacrifices a land of their choice.

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Burst of Speed

Creatures you control gain haste until end of turn. (They can attack and {T} even if they just came under your control.)

Canyon Minotaur

Lightning Elemental

Jackal Familiar

Jackal Familiar can't attack or block alone.

Stone Giant

{T}: Target creature you control with toughness less than Stone Giant's power gains flying until end of turn. Destroy that creature at the beginning of the next end step.

Dragon Whelp

Flying
{R}: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step.

Kindled Fury

Target creature gets +1/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Siege-Gang Commander

When Siege-Gang Commander enters, create three 1/1 red Goblin creature tokens.
{1}{R}, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to any target.

Shivan Dragon

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

Inferno Elemental

Whenever Inferno Elemental blocks or becomes blocked by a creature, Inferno Elemental deals 3 damage to that creature.

Goblin Artillery

{T}: Goblin Artillery deals 2 damage to any target and 3 damage to you.

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.)

Ignite Disorder

Ignite Disorder deals 3 damage divided as you choose among one, two, or three target white and/or blue creatures.