Boxing Day

Flash Flying Tail Spikes — When Manticore enters the battlefield, destroy target creature an opponent controls that was dealt damage this turn.

When Scholar of Stars enters the battlefield, if you control an artifact, draw a card.

When Clattering Skeletons dies, venture into the dungeon. (Enter the first room or advance to the next room.)

When Baleful Beholder enters the battlefield, choose one — • Antimagic Cone — Each opponent sacrifices an enchantment. • Fear Ray — Creatures you c...

When Sailor of Means enters the battlefield, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any col...

Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)

Flying Whenever Planar Ally attacks, venture into the dungeon. (Enter the first room or advance to the next room.)

Choose two target creatures controlled by different players. Return those creatures to their owners' hands.

Draw four cards, then discard two cards.

Whenever you gain life, put a +1/+1 counter on Celestial Unicorn.

When Omenspeaker enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your libr...

Flash When Paladin's Shield enters the battlefield, attach it to target creature you control. Equipped creature gets +0/+2. Equip {3} ({3}: Attach ...

Flying When Arborea Pegasus enters the battlefield, target creature gets +1/+1 and gains flying until end of turn.

Flying Whenever a creature attacks, you may pay {3}. When you do, put a +1/+1 counter on that creature.

Flying Whenever Kitesail Skirmisher attacks, another target creature attacking the same player or planeswalker gains flying until end of turn. Enco...

Kitesail Corsair has flying as long as it's attacking.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Return target tapped creature to its owner's hand. Draw a card.

Equipped creature gets +1/+0 and has "Whenever this creature attacks, you may sacrifice Spare Dagger. When you do, this creature deals 1 damage to ...

Flying {R}: This creature gets +1/+0 until end of turn.