Molten Ravager

{R}: Molten Ravager gets +1/+0 until end of turn.

Magmaquake

Magmaquake deals X damage to each creature without flying and each planeswalker.

Bloodrock Cyclops

Bloodrock Cyclops attacks each combat if able.

Grim Lavamancer

{R}, {T}, Exile two cards from your graveyard: Grim Lavamancer deals 2 damage to any target.

Ashmouth Hound

Whenever Ashmouth Hound blocks or becomes blocked by a creature, Ashmouth Hound deals 1 damage to that creature.

Thriving Bluff

Thriving Bluff enters the battlefield tapped.
As Thriving Bluff enters the battlefield, choose a color other than red.
{T}: Add {R} or one mana of the chosen color.

Cinder Elemental

{X}{R}, {T}, Sacrifice Cinder Elemental: It deals X damage to any target.

Volcanic Fallout

This spell can't be countered.
Volcanic Fallout deals 2 damage to each creature and each player.

Seismic Elemental

When Seismic Elemental enters the battlefield, creatures without flying can't block this turn.

Mana Geode

When Mana Geode enters the battlefield, scry 1.
{T}: Add one mana of any color.

Mountain

Spitting Earth

Spitting Earth deals damage to target creature equal to the number of Mountains you control.