Boxing Day

{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

First strike Menace (This creature can't be blocked except by two or more creatures.) {T}, Sacrifice Goldhound: Add one mana of any color.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

Flying Equipped creature has flying and "You can't lose the game and your opponents can't win the game." Reconfigure {5} ({5}: Attach to target cre...

Nevinyrral's Disk enters the battlefield tapped. {1}, {T}: Destroy all artifacts, creatures, and enchantments.

{T}: Add {R}.

Equipped creature has ward {2}, is an Assassin in addition to its other types, and can't be blocked. Equip legendary creature {1} Equip {3} ({3}: A...

Flying Cephalopod Sentry's power is equal to the number of artifacts you control.

Deathtouch When this creature leaves the battlefield, each opponent loses 2 life and you gain 2 life.

Juggernauts you control attack each combat if able. Juggernauts you control can't be blocked by Walls. Other creatures you control have base power ...

{1}, Sacrifice Dross Skullbomb: Draw a card. {2}{B}, Sacrifice Dross Skullbomb: Return target creature card from your graveyard to your hand. Draw ...

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Phyrexian Germ creature token, then attach this to it.) Equipped crea...

Equipped creature gets +1/+1. Whenever equipped creature deals combat damage to a player, create a Treasure token. (It's an artifact with "{T}, Sac...

When Alchemist's Vial enters the battlefield, draw a card. {1}, {T}, Sacrifice Alchemist's Vial: Target creature can't attack or block this turn.

Landfall — Whenever a land enters the battlefield under your control, equipped creature gets +2/+2 until end of turn. Equip {1} ({1}: Attach to tar...

Flash As Instruments of War enters the battlefield, choose a creature type. Creatures you control of the chosen type get +1/+1.

{T}: Add {B}. {1}{B}{B}, {T}, Sacrifice Infernal Idol: You draw two cards and you lose 2 life.

When Dutiful Replicator enters the battlefield, you may pay {1}. When you do, create a token that's a copy of target token you control not named Du...

At the beginning of each player's upkeep, that player returns a permanent they control to its owner's hand unless they pay 2 life.

At the beginning of your upkeep, you may put a petal counter on Lotus Blossom. {T}, Sacrifice Lotus Blossom: Add X mana of any one color, where X i...

When Soul-Guide Lantern enters the battlefield, exile target card from a graveyard. {T}, Sacrifice Soul-Guide Lantern: Exile each opponent's gravey...

Whenever Slagstone Refinery or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the bat...

When Energy Refractor enters the battlefield, draw a card. {2}: Add one mana of any color.

Prototype {4}{U}{U} — 6/6 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Depth Charge Colos...