Boxing Day

Flying Whenever another creature dies, you may draw a card. If you do, discard a card.

Vigilance Plainscycling {2} ({2}, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle.)

{T}: Add {C}. Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

{2}{U}, {T}, Sacrifice another creature: Reveal cards from the top of your library until you reveal a nonlegendary creature card. Put that card ont...

Flying When Death's-Head Buzzard dies, all creatures get -1/-1 until end of turn.

{U}: Untap Horseshoe Crab.

Flying {U}{U}{U}: Regenerate Ghost Ship.

Flying When Bloodhunter Bat enters the battlefield, target player loses 2 life and you gain 2 life.

{T}: Add {C}. {1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land. {T}: Target Assembly-Wo...

Put target nonland permanent on top of its owner's library.

Draw three cards, then discard a card.

Morph—Return two Islands you control to their owner's hand. (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time f...

Flying Islandcycling {2} ({2}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

Enchant creature Enchanted creature gets +2/+2 and has "{1}, Sacrifice a permanent: This creature gains flying until end of turn."

Until end of turn, target creature gains "{T}: Return target nonland permanent to its owner's hand."

When Self-Assembler enters the battlefield, you may search your library for an Assembly-Worker creature card, reveal it, put it into your hand, the...

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Nezumi Cutthroat can't block.

Destroy target creature.

When Prophetic Prism enters the battlefield, draw a card. {1}, {T}: Add one mana of any color.

When Mesmeric Fiend enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card. When Mesmer...

As Primal Clay enters the battlefield, it becomes your choice of a 3/3 artifact creature, a 2/2 artifact creature with flying, or a 1/6 Wall artifa...

Protection from white

{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.