Mountain (61) [Duel Decks: Elves vs. Goblins] SPA Sirena desgarradora Destroy each permanent completely covered

Destroy each permanent completely covered by those cards

but a lack of options will cost you even more

{B}: Regenerate Lotleth Troll

Set: Commander Anthology Volume II Type: Artifact Creature — Construct Rarity: Rare Cost: {4} Converge — Crystalline Crawler enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it

Set: Khans of Tarkir Type: Creature — Human Monk Rare Cost: {3}{R}{R} Double strike Prowess (Whenever you cast a noncreature spell

Mountain (61) [Duel Decks: Elves vs. Goblins] SPA Sirena desgarradora Destroy each permanent completely coveredSet: Duel Decks: Elves vs. Goblins Type: Basic Land Mountain Common Cost: ({T}: Add {R}.)