Boxing Day

Chaotic Backlash deals damage to target player equal to twice the number of white and/or blue permanents they control.

Chroma — Umbra Stalker's power and toughness are each equal to the number of black mana symbols in the mana costs of cards in your graveyard.

Target opponent reveals their hand. You choose a green or white creature card from it. You gain life equal to that creature card's toughness, then ...

Target player loses 2 life and you gain 2 life. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying...

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Target player discards a card. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Search target player's library for up to X cards, where X is the number of Swamps you control, and exile them. Then that player shuffles their libr...

Flying Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever Needle Specter deals combat damage to a player, that player ...

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Persist (When this creature dies, if it had no -1/-1 cou...

{B/G}{B/G}: Exile target card from a graveyard. You gain 1 life.

{T}: Target red or green creature gets -2/-0 until end of turn.

Whenever a permanent you control becomes untapped, Wake Thrasher gets +1/+1 until end of turn.

Flying {U/R}: Talonrend gets +1/-1 until end of turn.

{1}{U}, {T}: Return target creature with a counter on it to its owner's hand.

Target player draws a card. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

{T}: Target creature gains flying until end of turn. Whenever you cast a blue spell, you may untap Merrow Levitator.

Flying {U}: Target permanent becomes blue in addition to its other colors until end of turn.

{2}: Draw a card if you have no cards in hand.

Flying When Dream Thief enters the battlefield, draw a card if you've cast another blue spell this turn.

{T}: Tap target creature. Whenever you cast a white spell, you may untap Ballynock Trapper.

Counter target spell. Its controller draws a card. Draw a card.

Enchant creature As long as enchanted creature is red, it gets +1/+1 and has "{R/W}: This creature gets +1/+0 until end of turn." As long as enchan...

Flying Attacking creatures you control get +2/+0.

Target player can't play lands this turn if {R} was spent to cast this spell and can't cast creature spells this turn if {W} was spent to cast this...