Magmaquake

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

Seismic Elemental

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

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

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

Volcanic Geyser deals X damage to any target.

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

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

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

Bloodrock Cyclops attacks each combat if able.

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

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

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

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