Dragonlord Kolaghan [Dragons of Tarkir] Oathbreaker destroy Cosmic Horror unless you

destroy Cosmic Horror unless you pay {3}{B}{B}{B}

they tap all lands with mana abilities they control and lose all unspent mana

Set: HarperPrism Book Promos Type: Artifact Rarity: Rare Cost: {0} At the beginning of your upkeep

that player chooses a color

Set: Zendikar Expeditions Type: Land — Forest Island Rarity: Mythic ({T}: Add {G} or {U}

Dragonlord Kolaghan [Dragons of Tarkir] Oathbreaker destroy Cosmic Horror unless youSet: Dragons of Tarkir Type: Legendary Creature Elder Dragon Rarity: Mythic Cost: {4}{B}{R} Flying, haste Other creatures you control have haste. Whenever an opponent casts a creature or planeswalker spell with the same name as a card in their graveyard, that player loses 10 life.