Boxing Day

Whenever one or more creatures you control deal combat damage to a player, investigate. (Create a colorless Clue artifact token with "{2}, Sacrific...

Flash Whenever a creature you control dies, each opponent sacrifices a creature.

At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 3 life.

Enchant creature, land, or planeswalker Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.

If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

Your opponents play with their hands revealed.

Whenever a creature an opponent controls becomes tapped, put a shield counter on Palliation Accord. Remove a shield counter from Palliation Accord:...

Whenever you draw a card, target opponent mills two cards. If two nonland cards that share a color were milled this way, repeat this process. {5}{U...

At the beginning of each player's upkeep, that player returns a creature they control to its owner's hand.

Whenever you cast a noncreature spell, you may have Riddleform become a 3/3 Sphinx creature with flying in addition to its other types until end of...

Enchant creature you control When enchanted creature dies, target player loses X life and you gain X life, where X is its power.

Bestow {3}{B}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not atta...

Enchant creature When Sleep Paralysis enters the battlefield, tap enchanted creature. Enchanted creature doesn't untap during its controller's un...

Whenever you pay life, put that many blood counters on Font of Agonies. {1}{B}, Remove four blood counters from Font of Agonies: Destroy target cre...

Whenever a creature enters the battlefield under your control, you may pay {2}{R}. If you do, that creature deals damage equal to its power to any ...

At the beginning of your upkeep, target opponent discards a card if you control the creature with the greatest power or tied for the greatest power.

Flash Enchant creature Enchanted creature gets -X/-0, where X is the number of cards in your graveyard.

If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield. You may cast spells as though they had flash.

When New Perspectives enters the battlefield, draw three cards. As long as you have seven or more cards in hand, you may pay {0} rather than pay cy...

At the beginning of your upkeep, look at the top card of your library. You may put it into your graveyard. Then if you have seven or more cards in ...

Whenever a creature with power 5 or greater enters the battlefield under your control, you may have Where Ancients Tread deal 5 damage to any target.

Constellation — Whenever Grim Guardian or another enchantment enters the battlefield under your control, each opponent loses 1 life.

Whenever you lose life for the first time each turn, you get {E}. (You get an energy counter. Damage causes loss of life.) Pay {E}{E}, Sacrifice G...

When Bastion of Remembrance enters the battlefield, create a 1/1 white Human Soldier creature token. Whenever a creature you control dies, each opp...