Boxing Day

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Spend only black mana on X. Consume Spirit deals X damage to any target and you gain X life.

Breath of Malfegor deals 5 damage to each opponent.

Enchant creature Enchanted creature can't attack or block, and its activated abilities can't be activated.

Search target opponent's library for an artifact card and put that card onto the battlefield under your control. Then that player shuffles.

({T}: Add {W}.)

({T}: Add {R}.)

({T}: Add {U}.)

({T}: Add {G}.)

({T}: Add {U} or {B}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color....

Choose a card name. Search target opponent's graveyard, hand, and library for up to four cards with that name and exile them. That player shuffles,...

Flying Whenever this creature deals combat damage to a player, look at the top three cards of that player's library, exile one of them face down, t...

({T}: Add {G} or {W}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Haste Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Prevent all noncombat damage tha...

({T}: Add {U} or {R}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

({T}: Add {R} or {W}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Whenever you cast a red spell, if this creature has fewer than three +1/+1 counters on it, put a +1/+1 counter on this creature. Remove three +1/+1...

Destroy all creatures with mana value 3 or less.

Target opponent may have Risk Factor deal 4 damage to them. If that player doesn't, you draw three cards. Jump-start (You may cast this card from y...

({T}: Add {B} or {G}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Whenever a nontoken creature you control dies, this creature deals 1 damage to you and you draw a card.

Undergrowth — Search your library for a black card with mana value less than or equal to the number of creature cards in your graveyard, reveal it,...

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) At the beginning of combat on your tur...