Boxing Day

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspe...

Flying

Enchant creature Enchanted creature has protection from blue. This effect doesn't remove Blue Ward.

Tap all lands target player controls and that player loses all unspent mana.

Whenever a Forest an opponent controls becomes tapped, you gain 1 life.

Island Fish Jasconius doesn't untap during your untap step. At the beginning of your upkeep, you may pay {U}{U}{U}. If you do, untap Island Fish Ja...

Enchant enchantment At the beginning of the upkeep of enchanted enchantment's controller, Feedback deals 1 damage to that player.

You may have Clone enter the battlefield as a copy of any creature on the battlefield.

Enchant creature Enchanted creature has protection from black. This effect doesn't remove Black Ward.

Enchant land At the beginning of the upkeep of enchanted land's controller, Cursed Land deals 1 damage to that player.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Black creatures get +1/+1.

Flying (This creature can't be blocked except by creatures with flying or reach.) Nightmare's power and toughness are each equal to the number of S...

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Haste At the beginning of your upkeep, if Nether Shadow is in your graveyard with three or more creature cards above it, you may put Nether Shadow ...

Flying, trample At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can't, Lord of the Pit deals 7 damage to you.

White spells cost {3} more to cast. Activated abilities of white enchantments cost {3} more to activate.

At the beginning of your end step, if Erg Raiders didn't attack this turn, Erg Raiders deals 2 damage to you unless it came under your control this...

Whenever El-Hajjâj deals damage, you gain that much life.

Spend only black mana on X. Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's l...

{T}: Destroy target land. At the beginning of your upkeep, unless you pay {B}{B}{B}, tap Demonic Hordes and sacrifice a land of an opponent's choice.

Target spell or permanent becomes black. (Mana symbols on that permanent remain unchanged.)

{1}: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

({T}: Add {W} or {U}.)