Boxing Day

{1}, Sacrifice Scroll of Griselbrand: Target opponent discards a card. If you control a Demon, that player loses 3 life.

Equipped creature gets +2/+1 and has haste. Whenever a Warrior creature enters the battlefield, you may attach Obsidian Battle-Axe to it. Equip {3}

As long as Thran Golem is enchanted, it gets +2/+2 and has flying, first strike, and trample.

{2}, Discard a Spirit or Arcane card: Slumbering Tora becomes an X/X Cat artifact creature until end of turn, where X is the discarded card's mana ...

Equipped creature gets +1/+1 for each charge counter on Banshee's Blade. Whenever equipped creature deals combat damage, put a charge counter on B...

Equipped creature gets +5/+0. Equip {5}

Whenever Spincrusher blocks, put a +1/+1 counter on it. Remove a +1/+1 counter from Spincrusher: Spincrusher can't be blocked this turn.

{2}{B}, Sacrifice Nim Replica: Target creature gets -1/-1 until end of turn.

Activated abilities of artifacts and creatures can't be activated unless they're mana abilities.

When Contagion Clasp enters the battlefield, put a -1/-1 counter on target creature. {4}, {T}: Proliferate. (Choose any number of permanents and/or...

{1}, {T}: Add {B}{G}.

Altar of the Lost enters the battlefield tapped. {T}: Add two mana in any combination of colors. Spend this mana only to cast spells with flashback...

({S} can be paid with one mana from a snow source.) When Arcum's Astrolabe enters the battlefield, draw a card. {1}, {T}: Add one mana of any color.

{1}, Sacrifice Scroll of Avacyn: Draw a card. If you control an Angel, you gain 5 life.

If a player would draw a card, that player skips that draw instead. At the beginning of each end step, each player sacrifices a permanent unless th...

Indestructible Whenever Creepy Doll deals combat damage to a creature, flip a coin. If you win the flip, destroy that creature.

When you control no other artifacts, sacrifice Synod Centurion.

Trample Tap an untapped artifact you control: Lodestone Myr gets +1/+1 until end of turn.

Equipped creature gets +3/+1. Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

You have no maximum hand size. At the beginning of your upkeep, you gain 1 life for each card in your hand.

{3}, {T}: Flip a coin. If you win the flip, create a 2/2 colorless Insect artifact creature token with flying named Wirefly. If you lose the flip, ...

You have no maximum hand size.

At the beginning of your precombat main phase, add {B} for each charge counter on Altar of Shadows. {7}, {T}: Destroy target creature. Then put a c...

{T}: Add one mana of any color. {T}: Put a charge counter on Coalition Relic. At the beginning of your precombat main phase, remove all charge coun...