Boxing Day

{W}{W}: Target attacking creature gets -1/-0 until end of turn.

Flying Sacrifice a land: Return this creature to its owner's hand.

{1}{G}, Sacrifice a land: Create two 1/1 green Squirrel creature tokens. {1}{G}, Sacrifice a land: Squirrel creatures get +1/+1 until end of turn.

This creature gets +2/+1 as long as you control no untapped lands.

Sacrifice this creature: Prevent all combat damage that would be dealt this turn.

Reach (This creature can block creatures with flying.) Sacrifice a land: This creature deals 1 damage to each creature with flying.

Flying (This creature can't be blocked except by creatures with flying or reach.) Sacrifice this creature: Counter target spell unless its controll...

Flying Sacrifice this creature: Counter target spell unless its controller pays {3}.

Whenever this creature deals combat damage to a creature, you gain 2 life unless that creature's controller pays {2}.

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) If this creature would be...

First strike Suspend 4—{R} (Rather than cast this card from your hand, you may pay {R} and exile it with four time counters on it. At the beginning...

Whenever an opponent casts a spell, Kaervek deals damage equal to that spell's mana value to any target.

{T}: Choose target permanent you control or suspended card you own. If that permanent or card has a time counter on it, you may remove a time count...

Vigilance When this creature enters, you gain 4 life.

{R}, {T}, Discard a card: Destroy target blue permanent. {1}{R}, {T}, Discard a card: Jaya Ballard deals 3 damage to any target. A creature dealt d...

As this creature enters, turn all other nontoken creatures face down. (They're 2/2 creatures.) Ixidron's power and toughness are each equal to the ...

When this creature enters, tap all nonwhite creatures. Suspend 5—{W} (Rather than cast this card from your hand, you may pay {W} and exile it with ...

Vigilance {T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn. Suspend 4—{W...

This creature can't block creatures with power 2 or greater. {R}: This creature gains flying until end of turn.

{1}{W}, {T}, Discard a card: Create two 1/1 white Citizen creature tokens.

Whenever another Goblin you control becomes blocked, sacrifice it. If you do, it deals 4 damage to each creature blocking it. Sacrifice two Mountai...

Whenever another creature you control enters, this creature gets +2/+2 until end of turn.

Flash (You may cast this spell any time you could cast an instant.) Trample

All Slivers have "When this permanent enters, destroy target artifact or enchantment."