Mana Short [Collectors' Edition] Elemental Shapeshifter to thunder

to thunder

sacrifice Lithophage unless you sacrifice a Mountain

Set: Beta Edition Type: Sorcery Rarity: Uncommon Cost: {1}{B} Search your library for a card

But usually it's better to make a wall out of the wood and let trouble do the knocking

Set: Amonkhet Invocations Type: Creature — Elemental Rarity: Mythic Cost: {3}{B}{G} Lord of Extinction's power and toughness are each equal to the number of cards in all graveyards

Mana Short [Collectors' Edition] Elemental Shapeshifter to thunderSet: Collectors' Edition Type: Instant Rarity: Rare Cost: {2}{U} Tap all lands target player controls and that player loses all unspent mana.