Boxing Day

Soldevi Golem doesn't untap during your untap step. At the beginning of your upkeep, you may untap target tapped creature an opponent controls. If ...

Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent.

Cumulative upkeep {3} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for ...

{1}, {T}: Put a charge counter on Jeweled Amulet. Note the type of mana spent to pay this activation cost. Activate this ability only if there are ...

Jester's Mask enters the battlefield tapped. {1}, {T}, Sacrifice Jester's Mask: Target opponent puts the cards from their hand on top of their libr...

{2}, {T}, Sacrifice Jester's Cap: Search target player's library for three cards and exile them. Then that player shuffles their library.

{1}, {T}: Tap target artifact, creature, or land.

{X}, {T}: You may exile a nonland card from your hand. You may cast that card for as long as it remains exiled. Put a charge counter on Ice Cauldro...

Sacrifice Goblin Lyre: Flip a coin. If you win the flip, Goblin Lyre deals damage to target opponent or planeswalker equal to the number of creatur...

{3}, {T}: Exile the top card of your library. Until the beginning of your next upkeep, you may play that card.

{T}: Destroy target permanent you own. It can't be regenerated.

{2}: Target creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked a...

Hipparion can't block creatures with power 3 or greater unless you pay {1}.

{1}, {T}: Target 1/1 creature gets +1/+2 until end of turn.

{2}, Discard a card at random: Stormbind deals 2 damage to any target.

When you control no Islands, sacrifice Skeleton Ship. {T}: Put a -1/-1 counter on target creature.

Black creatures can't attack unless their controller sacrifices a land for each black creature they control that's attacking. (This cost is paid as...

{1}{R}{R}: Until end of turn, whenever you cast a black spell, put a +1/+1 counter on Mountain Titan.

At the beginning of each player's end step, tap all untapped Islands that player controls and Monsoon deals X damage to the player, where X is the ...

Merieke Ri Berit doesn't untap during your untap step. {T}: Gain control of target creature for as long as you control Merieke Ri Berit. When Merie...

Put target creature card from a graveyard onto the battlefield under your control.

At the beginning of your upkeep, sacrifice Glaciers unless you pay {W}{U}. All Mountains are Plains.

{1}{R}{G}, {T}: Exile Giant Trap Door Spider and target creature without flying that's attacking you.

Black and/or red permanents and spells are colorless sources of damage.