Molten Ravager

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

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.

Grim Lavamancer

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

Bloodrock Cyclops

Bloodrock Cyclops attacks each combat if able.

Magma Jet

Magma Jet deals 2 damage to any target. Scry 2.

Magmaquake

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

Mana Geode

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

Mountain

Seismic Elemental

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

Spitting Earth

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

Cinder Elemental

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

Volcanic Geyser

Volcanic Geyser 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.

Ashmouth Hound

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