Boxing Day

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Artifacts and creatures y...

Flying Creatures can't attack you.

Flying {T}: Add one mana of any color.

Flying, haste At the beginning of combat on your turn, if you've cast three or more instant and sorcery spells this turn, return this card from you...

({T}: Add {G} or {W}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

This spell can't be countered. Destroy all creatures.

({T}: Add {U} or {R}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

When this enchantment enters, exile all graveyards. If a card or token would be put into a graveyard from anywhere, exile it instead.

({T}: Add {B} or {G}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Players can't gain life. At the beginning of each player's upkeep, that player loses half their life, rounded up.

({T}: Add {W} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

{T}: Add one mana of any type that a land you control could produce. If this creature has a +1/+1 counter on it, add three mana of that type instea...

Flying At the beginning of each combat, any opponent may sacrifice a creature of their choice. If a player does, tap this creature and put a +1/+1 ...

({T}: Add {W} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

Enchant artifact At the beginning of the upkeep of enchanted artifact's controller, this Aura deals 1 damage to that player.

{T}: Target creature other than this creature has base power and toughness 0/2 until end of turn.

The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

{4}, {T}: Draw a card.

First strike

Whenever a nontoken creature you control enters, if it doesn't have the same name as another creature you control or a creature card in your gravey...

({T}: Add {W} or {B}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

This creature enters with seven +1/+0 counters on it. At end of combat, if this creature attacked or blocked this combat, remove a +1/+0 counter fr...

Electrodominance deals X damage to any target. You may cast a spell with mana value X or less from your hand without paying its mana cost.