Boxing Day

Trample Whenever you cast an instant or sorcery spell, Erratic Cyclops gets +X/+0 until end of turn, where X is that spell's mana value.

Flash Emerge {5}{U}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's converted mana cost...

When Stumpsquall Hydra enters the battlefield, distribute X +1/+1 counters among it and any number of commanders.

Return up to two target creature cards from your graveyard to your hand.

Choose up to one creature. Destroy the rest.

({U/R} can be paid with either {U} or {R}.) Flying Each instant and sorcery spell you cast has replicate. The replicate cost is equal to its mana c...

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.) Other creatures you control hav...

When Abzan Ascendancy enters the battlefield, put a +1/+1 counter on each creature you control. Whenever a nontoken creature you control dies, crea...

Vastwood Hydra enters the battlefield with X +1/+1 counters on it. When Vastwood Hydra dies, you may distribute a number of +1/+1 counters equal to...

Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell.) Choose target creature, then choose another target crea...

Trample Splinterfright's power and toughness are each equal to the number of creature cards in your graveyard. At the beginning of your upkeep, put...

When Masked Admirers enters the battlefield, draw a card. Whenever you cast a creature spell, you may pay {G}{G}. If you do, return Masked Admirers...

Hungering Hydra enters the battlefield with X +1/+1 counters on it. Hungering Hydra can't be blocked by more than one creature. Whenever Hungering ...

When you cast this spell, reveal the top X cards of your library. You may put a nonland permanent card with converted mana cost X or less from amon...

Reveal the top X cards of your library. Put all land cards from among them onto the battlefield tapped and the rest on the bottom of your library i...

Each Human creature you control has "{R}, {T}: This creature deals 1 damage to any target."

Each land card in your hand has cycling {R}. Cycling {2} ({2}, Discard this card: Draw a card.)

Starstorm deals X damage to each creature. Cycling {3} ({3}, Discard this card: Draw a card.)

Menace When Goblin Dark-Dwellers enters the battlefield, you may cast target instant or sorcery card with converted mana cost 3 or less from your g...

Fumiko the Lowblood has bushido X, where X is the number of attacking creatures. (Whenever this creature blocks or becomes blocked, it gets +X/+X u...

At the beginning of your upkeep, return an instant or sorcery card at random from your graveyard to your hand. Whenever you cast an instant or sorc...

{3}{R}: Gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. Activate thi...

Whenever Xathrid Necromancer or another Human creature you control dies, create a tapped 2/2 black Zombie creature token.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) If a creature card with flying was exiled with Soulflayer's ...