Boxing Day

All creatures have wither. (They deal damage to creatures in the form of -1/-1 counters.) Whenever chaos ensues, put a -1/-1 counter on target crea...

When you planeswalk to Quicksilver Sea and at the beginning of your upkeep, scry 4. (Look at the top four cards of your library, then put any numbe...

If you cast a spell this turn, you can't attack with creatures. If you attacked with creatures this turn, you can't cast spells. Whenever chaos ens...

At the beginning of your end step, put the cards in your hand on the bottom of your library in any order, then draw that many cards. Whenever chaos...

When you encounter Planewide Disaster, destroy all creatures. (Then planeswalk away from this phenomenon.)

When you planeswalk to Panopticon, draw a card. At the beginning of your draw step, draw an additional card. Whenever chaos ensues, draw a card.

Instant and sorcery cards in graveyards have flashback. The flashback cost is equal to the card's mana cost. (Its owner may cast the card from thei...

When you planeswalk away from Orzhova, each player returns all creature cards from their graveyard to the battlefield. Whenever chaos ensues, for e...

Whenever a creature you control deals combat damage to a player, you may search your library for a basic land card, put it onto the battlefield tap...

All creatures are black and have deathtouch. Whenever chaos ensues, creatures you control get +1/+0 and gain first strike until end of turn.

When you planeswalk away from Norn's Dominion, destroy each nonland permanent without a fate counter on it, then remove all fate counters from all ...

At the beginning of your end step, mill seven cards. Then return a card at random from your graveyard to your hand. Whenever chaos ensues, return t...

You may play any number of lands on each of your turns. Whenever chaos ensues, target red, green, or white creature you control gets +1/+1 until en...

At the beginning of your upkeep, put a flame counter on Naar Isle, then Naar Isle deals damage to you equal to the number of flame counters on it. ...

When you encounter Mutual Epiphany, each player draws four cards. (Then planeswalk away from this phenomenon.)

Whenever a nontoken creature enters, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffl...

At the beginning of your end step, put a pressure counter on Mount Keralia. When you planeswalk away from Mount Keralia, it deals damage equal to t...

When you encounter Morphic Tide, each player shuffles all permanents they own into their library, then reveals that many cards from the top of thei...

Whenever a player casts a spell, that player flips a coin. If the player loses the flip, counter that spell. Whenever chaos ensues, target player r...

Whenever a player casts a spell, that player may draw a card. Whenever chaos ensues, each player may return a blue card from their graveyard to the...

All creatures have "{T}: Add {G}{G}." Whenever chaos ensues, untap all creatures you control.

At the beginning of your upkeep, mill ten cards. Whenever chaos ensues, target player mills ten cards.

At the beginning of your upkeep, sacrifice a creature. If you can't, planeswalk. Whenever chaos ensues, any number of target players each create a ...

All creatures get +2/+2. Whenever chaos ensues, you may add {W}{U}{B}{R}{G}.