Boxing Day

Manifest the top card of your library, then put X +1/+1 counters on it. (To manifest a card, put it onto the battlefield face down as a 2/2 creatur...

Banefire deals X damage to any target. If X is 5 or more, this spell can't be countered and the damage can't be prevented.

Flying Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) Whenever a creature you control attacks...

Haste {T}: Turn target face-down creature you control face up. At the beginning of the next end step, sacrifice it.

Double strike (This creature deals both first-strike and regular combat damage.) Morph {4}{R}{R} (You may cast this card face down as a 2/2 creatur...

{1}{U}: Change this creature's base power to target creature's power. (This effect lasts indefinitely.)

{3}{W}, Exile this creature: Exile all creatures. At the beginning of the next end step, return those cards to the battlefield under their owners' ...

Mistform Ultimus is every creature type (even if this card isn't on the battlefield).

At the beginning of your upkeep, sacrifice this creature unless you pay {G}{G}. Morph {7}{G}{G} (You may cast this card face down as a 2/2 creature...

Amplify 3 (As this creature enters, put three +1/+1 counters on it for each Dragon card you reveal in your hand.) Flying {T}: This creature deals d...

Flying Morph {6}{R}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creatur...

Flying When this creature dies, all creatures get -5/-5 until end of turn.

Amplify 1 (As this creature enters, put a +1/+1 counter on it for each Zombie card you reveal in your hand.) At the beginning of your upkeep, if th...

When this creature dies, choose a creature type. Shuffle all creature cards of that type from your graveyard into your library.

Flying Morph {2}{U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creatur...

Morph {W}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turne...

Morph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turne...

Flash When this creature enters, create a 2/2 green Bear creature token for each nontoken creature put into your graveyard from the battlefield thi...

{T}, Pay 1 life, Sacrifice this land: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.

Target opponent exiles the top X cards of their library. You may cast any number of spells with mana value X or less from among them without paying...

Exile target nonland permanent.

Counter target creature spell. Put two +1/+1 counters on up to one target creature.

Whenever a face-down creature you control enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle...