Boxing Day

{T}: Add {C}. {B/R}, {T}: Add {B}{B}, {B}{R}, or {R}{R}.

As Sanctum Prelate enters the battlefield, choose a number. Noncreature spells with mana value equal to the chosen number can't be cast.

Sliver creatures you control have indestructible. (Damage and effects that say "destroy" don't destroy them.)

Metalcraft — {T}: Add one mana of any color. Activate only if you control three or more artifacts.

[+1]: You draw a card and you lose 1 life. [-3]: Destroy target creature. [-8]: Target opponent gets an emblem with "Whenever a player draws a ca...

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}.

{T}, Pay 1 life, Sacrifice Prismatic Vista: Search your library for a basic land card, put it onto the battlefield, then shuffle.

First strike Whenever Mirri, Weatherlight Duelist attacks, each opponent can't block with more than one creature this combat. As long as Mirri, W...

{T}, Pay 1 life: Add {G} or {W}. {1}, {T}, Sacrifice Horizon Canopy: Draw a card.

{T}: Add {C}. {W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.

[+2]: During target player's next turn, each creature that player controls attacks if able. [-2]: Rowan Kenrith deals 3 damage to each tapped crea...

[+2]: Until your next turn, up to two target creatures each have base power and toughness 0/3 and lose all abilities. [-2]: Target player draws tw...

Creatures with power greater than the number of cards in your hand can't attack.

Eminence — At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat y...

{W}: Brightling gains vigilance until end of turn. {W}: Brightling gains lifelink until end of turn. {W}: Return Brightling to its owner's hand. ...

{T}: Add {C}. {T}: Add {R} or {G}. Each opponent gains 1 life.

[+1]: Draw a card. At the beginning of the next end step, untap up to two lands. [-3]: Put target nonland permanent into its owner's library third...

Artifacts you control have indestructible. (Effects that say "destroy" don't destroy them. Artifact creatures with indestructible can't be destroye...

{T}: Add {W}. {T}: Return target legendary creature to its owner's hand.

Target player discards two cards at random.

Dark Depths enters the battlefield with ten ice counters on it. {3}: Remove an ice counter from Dark Depths. When Dark Depths has no ice counters o...

All permanents are artifacts in addition to their other types. All cards that aren't on the battlefield, spells, and permanents are colorless. Pl...

Imprint — When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand. {T}: Add one mana of any of the exiled...

{T}: Add {W}. {T}: Return target legendary creature to its owner's hand.