Power Surge [Summer Magic / Edgar] Sliver Mutant Set: Alpha Edition Type: Sorcery

Set: Alpha Edition Type: Sorcery Rarity: Rare Cost: {X}{U}{U}{U} Destroy X target Mountains

Goblins Type: Instant Rarity: Rare Cost: {3}{U}{U} You may exile a blue card from your hand rather than pay this spell's mana cost

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

If you control an Urza's Mine and an Urza's Tower

Power Surge [Summer Magic / Edgar] Sliver Mutant Set: Alpha Edition Type: SorcerySet: Summer Magic Edgar Type: Enchantment Rarity: Rare Cost: {R}{R} At the beginning of each player's upkeep, Power Surge deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn.