Boxing Day

As long as it's your turn, Gideon Blackblade is a 4/4 Human Soldier creature with indestructible that's still a planeswalker. Prevent all damage t...

Trample When Earthshaker Giant enters the battlefield, other creatures you control get +3/+3 and gain trample until end of turn.

(Dryad Arbor isn't a spell, it's affected by summoning sickness, and it has "{T}: Add {G}.")

Destroy all lands.

[+4]: Target player exiles a card from their hand. [-3]: Exile target permanent. [-14]: Restart the game, leaving in exile all non-Aura permanent c...

{T}, Pay 1 life, Sacrifice Windswept Heath: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.

({T}: Add {G} or {W}.) Canopy Vista enters the battlefield tapped unless you control two or more basic lands.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Exile all artifacts, creatures, and lands from the battlefield, all cards from all graveyards, and all cards from all hands. Cycling {5}{R}{R} ({5}...

Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.) Whenever you gain life, put a +1/+1 counter on each creatur...

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost. Counter target spell.

Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.) Other creatures you contr...

[+1]: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land. [-2]: Add {R} for each Mountain you con...

{T}: Add {C}. {1}, {T}, Sacrifice Tectonic Edge: Destroy target nonbasic land. Activate only if an opponent controls four or more lands.

Flying Your opponents can't gain life. At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. ...

{X}{X}{G}: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.) When Polukranos, World Eater be...

{T}: Add {C}. {T}, Sacrifice Strip Mine: Destroy target land.

{T}: Draw three cards. {2}{U}{U}: Return Arcanis the Omnipotent to its owner's hand.

{T}, Pay 1 life: Add one mana of any color.

[+3]: Destroy target noncreature permanent. [-2]: Gain control of target creature. [-9]: Nicol Bolas, Planeswalker deals 7 damage to target playe...

[+1]: Target player draws two cards, then discards two cards. [-2]: Gain control of target artifact. [-6]: You get an emblem with "Whenever you c...

[+1]: Until your next turn, whenever a creature deals combat damage to Vraska the Unseen, destroy that creature. [-3]: Destroy target nonland perm...

[+1]: Draw a card, then discard a card at random. [-4]: Tibalt, the Fiend-Blooded deals damage equal to the number of cards in target player's han...

{T}: Target artifact creature's controller sacrifices it. That player may search their library for a noncreature artifact card, put it onto the bat...