Boxing Day

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....

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

This spell can't be countered. At the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil. Sacrifice another Serpe...

When you cast this spell, you gain half X life and draw half X cards. Round down each time. Flying, trample Hydroid Krasis enters the battlefield w...

Vigilance Whenever you cast a creature spell, draw a card, then you may put a land card from your hand onto the battlefield. {3}, {T}: Return targe...

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) If one or ...

Affinity for artifacts Flying When Thought Monitor enters the battlefield, draw two cards.

Whenever you draw a card, you may pay {1}. If you do, put a +1/+1 counter on Nadir Kraken and create a 1/1 blue Tentacle creature token.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Ward {4} Whene...

Flying When Ethereal Investigator enters the battlefield, investigate X times, where X is the number of opponents you have. (To investigate, create...

Whenever you cast an artifact spell, investigate. (Create a colorless Clue artifact token with "{2}, Sacrifice this artifact: Draw a card.") Activa...

Deathtouch At the beginning of your end step, investigate for each opponent who lost life this turn. Whenever a Clue you control is put into a grav...

Haste {T}, Sacrifice an artifact: Put a +1/+1 counter on each Goblin you control. Whenever an artifact is put into a graveyard from the battlefield...

Flying, vigilance, haste Whenever a player attacks with three or more creatures, you draw a card. Whenever a player attacks with five or more creat...

Whenever you cast a historic spell, create a Treasure token. This ability triggers only once each turn. (Artifacts, legendaries, and Sagas are hist...

Deathtouch Whenever Mirkwood Spider attacks, target legendary creature you control gains deathtouch until end of turn.

Defender Whenever you attack with one or more Goblins and/or Orcs, create a 2/1 colorless Construct artifact creature token with flying named Balli...

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

{T}: Move a counter of each kind not on Goldberry, River-Daughter from another target permanent you control onto Goldberry. {U}, {T}: Move one or m...

Whenever Elrond, Lord of Rivendell or another creature enters the battlefield under your control, scry 1. If this is the second time this ability h...

Whenever another black creature enters the battlefield under your control, target creature gains intimidate until end of turn. (It can't be blocked...

When Plaguecrafter enters the battlefield, each player sacrifices a creature or planeswalker. Each player who can't discards a card.

Menace When Massacre Girl enters the battlefield, each other creature gets -1/-1 until end of turn. Whenever a creature dies this turn, each creatu...