Boxing Day

Flying Sacrifice Aven Augur: Return up to two target creatures to their owners' hands. Activate only during your upkeep.

Flying When Parasitic Strix enters the battlefield, if you control a black permanent, target player loses 2 life and you gain 2 life.

Return target nonland permanent with mana value X to its owner's hand. Draw a card.

Defender Metalcraft — As long as you control three or more artifacts, Spire Serpent gets +2/+2 and can attack as though it didn't have defender.

Whenever Drelnoch becomes blocked, you may draw two cards.

Each player draws X cards. Forecast — {2}{U}, Reveal Skyscribing from your hand: Each player draws a card. (Activate only during your upkeep and on...

Flying White spells and black spells you cast cost {1} less to cast.

Flying At the beginning of your upkeep, sacrifice Chisei, Heart of Oceans unless you remove a counter from a permanent you control.

Return target permanent to its owner's hand. If that permanent is red or green, put it on top of its owner's library instead.

Choose a creature type. Draw a card for each permanent you control of that type.

You may have Jwari Shapeshifter enter the battlefield as a copy of any Ally creature on the battlefield.

Flying When Hoverguard Sweepers enters the battlefield, you may return up to two target creatures to their owners' hands.

Return all artifacts you control to their owner's hand.

Unattach all Equipment from target creature.

Aeon Chronicler's power and toughness are each equal to the number of cards in your hand. Suspend X—{X}{3}{U}. X can't be 0. Whenever a time coun...

Counter target spell if its controller is poisoned.

Whenever a permanent deals damage to you, return it to its owner's hand.

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

Each player mills five cards. Flashback {7}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Return target enchanted permanent to its owner's hand.

Create a token that's a copy of target creature you control. Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cos...

Return target creature to its owner's hand. Its controller draws a card.

Whenever Vedalken Ghoul becomes blocked, defending player loses 4 life.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Draw three cards.