Constant Mists [Stronghold] Fourth Edition If an effect causes you

If an effect causes you to discard a card

Set: Revised Edition Type: Land — Forest Plains Rarity: Rare ({T}: Add {G} or {W}

Set: World Championship Promos Type: Creature — Human Barbarian Rarity: Rare Cost: {2}{R}{R} When Balduvian Horde enters the battlefield

Set: Shadows over Innistrad Prerelease Promos Type: Creature — Zombie Giant Rarity: Rare Cost: {2}{B} Diregraf Colossus enters the battlefield with a +1/+1 counter on it for each Zombie card in your graveyard

Constant Mists [Stronghold] Fourth Edition If an effect causes youSet: Stronghold Type: Instant Rarity: Uncommon Cost: {1}{G} BuybackSacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Prevent all combat damage that would be dealt this turn.