Boxing Day

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

As an additional cost to cast this spell, sacrifice a creature. Rite of Consumption deals damage equal to the sacrificed creature's power to targe...

Cast this spell only during combat. Untap target creature you don't control and gain control of it. It gains haste until end of turn. At the begin...

({B/P} can be paid with either {B} or 2 life.) Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Flying Whenever Shimian Specter deals combat damage to a player, that player reveals their hand. You choose a nonland card from it. Search that pl...

At the beginning of your upkeep, target player loses 1 life. Sacrifice Smoldering Tar: It deals 4 damage to target creature. Activate only as a sor...

Flash When Muck Drubb enters the battlefield, change the target of target spell that targets only a single creature to Muck Drubb. Madness {2}{B} (...

Each player loses X life, discards X cards, sacrifices X creatures, then sacrifices X lands.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Enchant artifact Enchanted artifact has "At the beginning of your upkeep, you lose 2 life."

Return target creature card from a graveyard to its owner's hand. Clash with an opponent. If you win, return Revive the Fallen to its owner's hand....

Enchant creature Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.) Whenever enchanted creat...

[+1]: Each player discards a card. [-2]: Target player sacrifices a creature. [-6]: Separate all permanents target player controls into two piles. ...

Protection from white

Ninjutsu {3}{B} ({3}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)...

When Kemuri-Onna enters the battlefield, target player discards a card. Whenever you cast a Spirit or Arcane spell, you may return Kemuri-Onna to ...

Your opponents play with their hands revealed. Sacrifice Seer's Vision: Look at target player's hand and choose a card from it. That player discar...

Target creature gets -1/-1 until end of turn. Morbid — That creature gets -13/-13 until end of turn instead if a creature died this turn.

Whenever Ogre Marauder attacks, it gains "Ogre Marauder can't be blocked" until end of turn unless defending player sacrifices a creature.

Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card.

Search your library for a card, put that card into your hand, then shuffle.

Flying When Reiver Demon enters the battlefield, if you cast it from your hand, destroy all nonartifact, nonblack creatures. They can't be regener...

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Flying When Puppeteer Clique enters the battlefield, put target creature card from an opponent's graveyard onto the battlefield under your control...