Boxing Day

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) {1}{W}{W}: Target Knight ...

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

Protection from red Shadow (This creature can block or be blocked by only creatures with shadow.)

At the beginning of your upkeep, sacrifice Sacred Mesa unless you sacrifice a Pegasus. {1}{W}: Create a 1/1 white Pegasus creature token with flying.

{2}, Discard a card at random: Stormbind deals 2 damage to any target.

As Teferi's Moat enters the battlefield, choose a color. Creatures of the chosen color without flying can't attack you.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) Whenever a player casts a black spell, you gain 1 life.

Icatian Javelineers enters the battlefield with a javelin counter on it. {T}, Remove a javelin counter from Icatian Javelineers: It deals 1 damage ...

Flying, first strike, vigilance, trample, haste, protection from black and from red

Whenever a Sliver becomes blocked, that Sliver gets +1/+1 until end of turn for each creature blocking it.

Protection from white {1}{R}: Wildfire Emissary gets +1/+0 until end of turn.

Flying Whenever a creature dealt damage by Soul Collector this turn dies, return that card to the battlefield under your control. Morph {B}{B}{B} (...

{U}, {T}: Put target creature you control on top of its owner's library. {R}, {T}: Shadow Guildmage deals 1 damage to any target and 1 damage to you.

When Sengir Autocrat enters the battlefield, create three 0/1 black Serf creature tokens. When Sengir Autocrat leaves the battlefield, exile all Se...

Choose one — • Target player discards a card. • Target creature gets +2/-1 until end of turn. • Target creature gains swampwalk until end of tur...

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

Pirate Ship can't attack unless defending player controls an Island. {T}: Pirate Ship deals 1 damage to any target. When you control no Islands, ...

You may choose not to untap Giant Oyster during your untap step. {T}: For as long as Giant Oyster remains tapped, target tapped creature doesn't u...

Flying, first strike, vigilance, trample, haste, protection from black and from red

{3}, {T}: Tap target creature you control and target creature of an opponent's choice they control. Those creatures fight each other. (Each deals d...

Sacrifice an enchantment: This creature gets +2/+2 until end of turn.

Haste Echo {3}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless yo...

If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast. Fear (This creature can't be blocked except by ...

Counter target instant or Aura spell that targets a permanent you control.