Boxing Day

{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-Work...

{T}: Add {G}.

Destroy target artifact with converted mana cost X. It can't be regenerated. Detonate deals X damage to that artifact's controller.

{T}: Destroy target tapped creature.

{T}: Prevent the next 1 damage that would be dealt to target creature this turn.

{1}, {T}: Target creature gains banding until end of turn. (Any creatures with banding, and up to one without, can attack in a band. Bands are bloc...

Enchant creature Enchanted creature gets +1/+0. {R}{R}{R}: Regenerate enchanted creature.

Target creature gets +X/+0 until end of turn.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Sea Serpent can't attack unless defending player controls an Island. When you control no Islands, sacrifice Sea Serpent.

Enchant artifact an opponent controls Whenever enchanted artifact becomes tapped, choose one — • Relic Bind deals 1 damage to target player or plan...

Enchant land Whenever enchanted land becomes tapped, Psychic Venom deals 2 damage to that land's controller.

{T}: Psionic Entity deals 2 damage to any target and 3 damage to itself.

{T}: Prodigal Sorcerer deals 1 damage to any target.

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspe...

Enchant enchantment At the beginning of the upkeep of enchanted enchantment's controller, that player may pay any amount of mana. Power Leak deals ...

Flying

Enchant land As Phantasmal Terrain enters the battlefield, choose a basic land type. Enchanted land is the chosen type.

Flying At the beginning of your upkeep, sacrifice Phantasmal Forces unless you pay {U}.

Each player may discard up to three cards. Mind Bomb deals damage to each player equal to 3 minus the number of cards they discarded this way.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Whenever a Forest an opponent controls becomes tapped, you gain 1 life.