Boxing Day

Companion — Your starting deck contains only cards with even mana values. (If this card is your chosen companion, you may put it into your hand fro...

Mutate {1}{G}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature...

Vigilance Creatures you control with vigilance have "{1}, {T}: Tap target creature."

Choose odd or even. Exile each creature with mana value of the chosen quality. (Zero is even.)

Search your library for up to three monocolored cards with different names and exile them. An opponent chooses one of those cards. Shuffle that car...

Return any number of permanent cards with different names from your graveyard to the battlefield.

Your opponents can't cast spells from anywhere other than their hands.

Mutate {4}{B}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature...

Mutate {2}{W}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature...

At the beginning of combat on your turn, choose a kind of counter at random that this creature doesn't have on it from among flying, first strike, ...

Enchant creature When this Aura enters, tap enchanted creature. Enchanted creature gets +20/+20.

{T}: Add {C}. {3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

Return all permanents of the color of your choice to their owners' hands.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, counter target activated ability. (Mana abilities ca...

Choose artifact, creature, or land. Tap all untapped permanents of the chosen type target player controls, or untap all tapped permanents of that t...

Reveal cards from the top of your library until you reveal a nonland card, then put all cards revealed this way into your hand.

When a player casts a spell, sacrifice this enchantment. If you do, each of that player's opponents draws three cards.

When this creature enters, destroy target land.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Destroy each nonland permanent with mana value X or less.

Cast this spell only if you control two or more Vampires. Destroy target creature. You gain 4 life.

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Electrolyze deals 2 damage divided as you choose among one or two targets. Draw a card.

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.