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{X}, {T}: Tap X target lands.

When a spell or ability an opponent controls causes you to discard this card, create four 1/1 colorless Gnome artifact creature tokens. {4}, {T}: C...

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...

Whenever Karn blocks or becomes blocked, it gets -4/+4 until end of turn. {1}: Target noncreature artifact becomes an artifact creature with power ...

{T}: Add {C}. {T}: Add {8}. Activate only once and only if you control an Urza's Mine, an Urza's Power-Plant, and an Urza's Tower. {7}, {T}: Head...

{T}: Add {C}. {T}: Add {8}. Activate only once and only if you control an Urza's Mine, an Urza's Power-Plant, and an Urza's Tower. {7}, {T}: Head...

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...

Each artifact spell costs {1} more to cast for each artifact its controller controls.

Search your library for a nonland card and reveal it. Each opponent who cast a spell this turn with the same name as that card loses 6 life. Then s...

{3}, {T}: Reveal cards from the top of your library until you reveal a land card. This artifact deals damage equal to the number of nonland cards r...

Flip a coin until you lose a flip or choose to stop flipping. If you lose a flip, Fiery Gambit has no effect. If you win one or more flips, Fiery G...

At the beginning of each opponent's upkeep, that player chooses draw step, main phase, or combat phase. The player skips each instance of the chose...

Protection from white At the beginning of your end step, you lose 4 life. Whenever a creature dies, you gain 2 life.

Activated abilities of artifacts and creatures can't be activated unless they're mana abilities.

At the beginning of your upkeep, destroy target nonland permanent with the lowest mana value. (If two or more permanents are tied for lowest, targe...

Whenever an artifact, creature, or enchantment enters, its controller chooses target permanent another player controls that shares a card type with...

Flying This creature enters with six +1/+1 counters on it. Whenever this creature attacks or blocks, remove a +1/+1 counter from it at end of comba...

This artifact enters with X charge counters on it. Whenever a player casts a spell with mana value equal to the number of charge counters on this a...

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Flying Broodstar's power and toughness are each equal to ...

Trample {3}{R}, Sacrifice an artifact: Bosh deals damage equal to the sacrificed artifact's mana value to any target.

{R}, Exile the top ten cards of your library: This creature deals 2 damage to any target.

At the beginning of your first main phase, add {B} for each charge counter on this artifact. {7}, {T}: Destroy target creature. Then put a charge c...