Valakut, the Molten Pinnacle enters tapped. Whenever a Mountain you control enters, if you control at least five other Mountains, you may have Valakut, the Molten Pinnacle deal 3 damage to any target. {T}: Add {R}.
Haste When Goblin Ringleader enters, reveal the top four cards of your library. Put all Goblin cards revealed this way into your hand and the rest on the bottom of your library in any order.
{R}, Sacrifice Goblin Legionnaire: It deals 2 damage to any target. {W}, Sacrifice Goblin Legionnaire: Prevent the next 2 damage that would be dealt to any target this turn.
Counter target spell. If that spell is countered this way, put that card on your choice of the top or bottom of its owner's library instead of into that player's graveyard.