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{T}, Sacrifice an artifact: Add an amount of {R} equal to the sacrificed artifact's mana value. Spend this mana only to cast artifact spells or act...

Whenever you crank this Contraption, look at the top X cards of your library, where X is the number of artifacts you control. Put one of those card...

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

Firebending X, where X is Fire Lord Zuko's power. (Whenever this creature attacks, add X {R}. This mana lasts until end of combat.) Whenever you ca...

Flash Flying When Aang enters, airbend up to one other target creature or spell. (Exile it. While it's exiled, its owner may cast it for {2} rather...

Creature cards in graveyards can attack and block as though they were on the battlefield, can block or be blocked only by creature cards in graveya...

{4}, {T}: Target opponent exiles cards from the top of their library until they exile an instant or sorcery card. You may cast that card without pa...

Magmaquake deals X damage to each creature without flying and each planeswalker.

{T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

Choose one — • Destroy each creature with an odd number of words in its name. (Hyphenated words are one word.) • Destroy each creature with an even...

Whenever you crank this Contraption, target creature gets +X/+X until end of turn, where X is the greatest power among creatures you control.

Whenever an opponent casts a spell, you have five seconds to choose a keyword you haven't chosen for a card named Modular Monstrosity today that's ...

Return all basic land cards from all graveyards to the battlefield tapped under their owners' control.

As this artifact enters, pay any amount of life. {4}, {T}: Create an X/X black Phyrexian Minion creature token, where X is the life paid as this ar...

Haste Reveal this card from your hand: Masterful Ninja is on the battlefield and in your hand until end of turn. {1}{B}: This creature gets +1/+1 u...

{1}{B/R}: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The ...

When an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 4/4 Giant creature with protection from each of that spe...

Pay half your life, rounded up: This enchantment becomes a 4/4 Phyrexian Horror creature with flying.

Flying Echo {2}{R}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unles...

{5}, {T}, Sacrifice Kindslaver: A person outside the game controls target player during that player's next turn. Neither player may advise that per...

At the beginning of your upkeep, if you have a card in hand, return this creature to its owner's hand.

Whenever an opponent plays a land, if this permanent is an enchantment, it becomes a 3/2 Elk Beast creature. Whenever you play a land, if this perm...

Whenever another artifact you control enters, put a +1/+1 counter on this creature. If that artifact is a Contraption, this creature gains lifelink...

As this enchantment enters, choose odd or even. Whenever a creature you control with a collector number of the chosen value enters, draw a card.