Boxing Day

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 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. ...

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...

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}.

When you planeswalk to Kilnspire District and at the beginning of your first main phase, put a charge counter on Kilnspire District, then add {R} f...

Whenever a creature you control attacks a player, for each other opponent, you may create a token that's a copy of that creature, tapped and attack...

Prevent all combat damage that would be dealt by non-Werewolf creatures. Whenever chaos ensues, each creature you control gets +2/+2, gains trample...

Whenever a player casts a creature spell that's black, red, or green, it gains devour 5. (As that creature enters, you may sacrifice any number of ...

Whenever a player casts an instant or sorcery spell, that player copies it. The player may choose new targets for the copy. Whenever chaos ensues, ...

Whenever a nontoken creature enters, its controller creates a token that's a copy of that creature. Whenever chaos ensues, destroy target creature ...