Boxing Day

Creatures you control get +X/+0, where X is the number of cards in your hand.

If a creature you control would deal damage, it deals double that damage instead.

If a basic land you control is tapped for mana, it produces mana of a color of your choice instead of any other type.

Creatures you control get +1/+0.

Creatures you control have shadow. (They can block and be blocked only by creatures with shadow.)

Each noncreature artifact you control is an artifact creature with power and toughness each equal to its mana value.

Spells you cast cost {1} less to cast.

Huang Zhong can't be blocked by more than one creature.

{T}: Put target creature card from your graveyard on top of your library. Activate only during your turn, before attackers are declared.

Destroy all tapped creatures.

Horsemanship (This creature can't be blocked except by creatures with horsemanship.) When Guan Yu is put into your graveyard from the battlefield, ...

Creatures and lands target opponent controls don't untap during their next untap step.

Whenever a creature you control deals damage to a creature, destroy the other creature. It can't be regenerated.

{3}: Return target creature card from your graveyard to your hand.

Cast this spell only during the declare attackers step and only if you've been attacked this step. Destroy target attacking creature.

When Dong Zhou enters, target creature an opponent controls deals damage equal to its power to that player.

At the beginning of your draw step, draw an additional card.

{T}: Destroy target creature of your choice, then destroy target creature of an opponent's choice. Activate only during your turn, before attackers...

Creatures you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)

{0}: The next 1 damage that would be dealt to target creature you control is dealt to you instead.

Whenever a creature you control deals damage to a creature or player, you gain 1 life.

Sacrifice a permanent: Return target creature to its owner's hand.

Whenever a creature deals damage to you, destroy it.

Squirrellink (Damage dealt by this creature also causes you to create that many 1/1 green Squirrel creature tokens.) Creature tokens you control ar...