Boxing Day

Any player may have Breaking Point deal 6 damage to them. If no one does, destroy all creatures. Creatures destroyed this way can't be regenerated.

Sizzle deals 3 damage to each opponent.

Untap all creatures and gain control of them until end of turn. They gain haste until end of turn.

Return target permanent to its owner's hand. Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Any player may have Book Burning deal 6 damage to them. If no one does, target player mills six cards.

Flame Rift deals 4 damage to each player.

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Storm (When ...

Search your library for any number of basic land cards, reveal those cards, then shuffle and put them on top.

Lands target player controls don't untap during their next untap step.

({U/P} can be paid with either {U} or 2 life.) Draw two cards, then proliferate. (Choose any number of permanents and/or players, then give each an...

You may cast Saproling Symbiosis as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.) Creat...

Destroy two target nonblack creatures unless either one is a color the other isn't. They can't be regenerated.

You may sacrifice two Mountains rather than pay this spell's mana cost. Destroy all artifacts.

Target player draws two cards. Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Exchange control of two target permanents that share a card type. (Artifact, creature, enchantment, land, and planeswalker are card types.)

Manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's...

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Each opponent discards two cards.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Take an extra turn after this one. Exile Temporal Trespass.

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...

Look at the top two cards of your library. Manifest one of those cards, then put the other on the top or bottom of your library. (To manifest a car...

Arc Blade deals 2 damage to any target. Exile Arc Blade with three time counters on it. Suspend 3—{2}{R} (Rather than cast this card from your hand...

Search target player's library for a card and exile it. Then that player shuffles. Gravestorm (When you cast this spell, copy it for each permanent...

Target player discards two cards at random unless that player has Skullscorch deal 4 damage to them.