Boxing Day

Assist (Another player can pay up to {X} of this spell's cost. You choose the value of X.) Destroy target creature with power X or less.

A person outside the game looks at target opponent's hand and chooses a nonland card from it. That player discards that card.

{3}{B}{B}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) As long as Sinuous Vermin i...

When this creature enters the battlefield, target creature an opponent controls gets -1/-1 until end of turn.

Deathtouch When Steady-Handed Mook enters the battlefield, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one ...

Increase the result of each die you roll by 2.

At the beginning of your upkeep, destroy all nonland permanents with the first name alphabetically among nonland permanents.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Pu...

Menace

Partner with Gorm the Great (When this creature enters the battlefield, target player may put Gorm into their hand from their library, then shuffle...

({B/P} can be paid with either {B} or 2 life.) {B/P}{B/P}{B/P}{B/P}: Reveal a card you own from outside the game that has been banned or restricted...

As Zombie Fanboy enters the battlefield, choose an artist. Whenever a permanent with art by the chosen artist is put into a graveyard, put two +1/+...

As Working Stiff enters the battlefield, straighten your arms. When you bend an elbow, sacrifice Working Stiff.

You may tap Snickering Squirrel to increase the result of a die any player rolled by 1.

Whenever Sly Spy deals combat damage to a player, roll a six-sided die. That player loses life equal to the result.

Whenever Sly Spy deals combat damage to a player, that player reveals the top card of their library. Put that card into your hand and you lose life...

Whenever Sly Spy deals combat damage to a player, you may destroy target creature facing right in its art. (Creatures without faces don't face anyw...

Whenever Sly Spy deals combat damage to a player, that player loses a finger until Sly Spy leaves the battlefield. (The finger is chosen by its own...

Whenever Sly Spy deals combat damage to a player, you may destroy target creature facing left in its art. (Creatures without faces don't face anywh...

Whenever Sly Spy deals combat damage to a player, that player reveals their hand. You choose a card from it with the longest name. That player disc...

Target creature gets -X/-X until end of turn, where X is the number of times the letter of your choice appears in that creature's name.

Assist (Another player can pay up to {3} of this spell's cost.) {2}: Fan Favorite gets +1/+1 until end of turn. Any player may activate this ability.

Flying, first strike, vigilance, lifelink, protection from red and from green

Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard. {1}{B}{G}, Sacrifice another creature: Each opponent loses life equa...