As Cloud Key enters the battlefield, choose artifact, creature, enchantment, instant, or sorcery.

Spells you cast of the chosen type cost {1} less to cast.

You may play lands from your graveyard.

If a land is tapped for two or more mana, it produces {C} instead of any other type and amount.

Each spell a player casts costs {1} more to cast for each other spell that player has cast this turn.

If you control a commander, you may cast this spell without paying its mana cost.

You may choose new targets for target spell or ability.

{T}: Add {C}.

{3}: Return Drownyard Temple from your graveyard to the battlefield tapped.

Creatures with power greater than the number of cards in your hand can't attack.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.)

Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked.

{T}: Add {C} for each charge counter on Everflowing Chalice.

Artifact spells you cast cost {1} less to cast.

Tap two untapped artifacts you control: Ghirapur Aether Grid deals 1 damage to any target.

Each player may play an additional land on each of their turns.

At the beginning of each player's upkeep, if that player has no cards in hand, that player draws three cards.

{X}{X}{1}: Destroy target noncreature artifact with mana value X.

{T}, Sacrifice an artifact: Target player mills three cards.

Whenever an artifact enters the battlefield, you may untap Grinding Station.

Whenever you draw your second card each turn, Irencrag Pyromancer deals 3 damage to any target.

Flying

Historic spells you cast cost {1} less to cast. (Artifacts, legendaries, and Sagas are historic.)

Activated abilities of artifacts your opponents control can't be activated.

+1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value.

-2: You may reveal an artifact card you own from outside the game or choose a face-up artifact card you own in exile. Put that card into your hand.

If an opponent controls an Island and you control a Mountain, you may cast this spell without paying its mana cost.

Destroy target artifact.

All permanents are artifacts in addition to their other types.

All cards that aren't on the battlefield, spells, and permanents are colorless.

Players may spend mana as though it were mana of any color.

As Pithing Needle enters the battlefield, choose a card name.

Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Pyroclasm deals 2 damage to each creature.

Put target permanent you own on the bottom of your library. Reveal cards from the top of your library until you reveal a card that shares a card type with that permanent. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

{T}: Add {C}. ({C} represents colorless mana.)

{2}{C}, {T}: Draw a card. Activate only if you have no cards in hand.

No more than one creature can attack each combat.

No more than one creature can block each combat.

Exile Simian Spirit Guide from your hand: Add {R}.

Choose one --

• Slagstorm deals 3 damage to each creature.

• Slagstorm deals 3 damage to each player.

When Soul-Guide Lantern enters the battlefield, exile target card from a graveyard.

{T}, Sacrifice Soul-Guide Lantern: Exile each opponent's graveyard.

{1}, {T}, Sacrifice Soul-Guide Lantern: Draw a card.

Spells cost {1} more to cast.

{T}: Add {C}.

{T}, Sacrifice Strip Mine: Destroy target land.

All creatures have "At the beginning of your upkeep, destroy this creature unless you pay {1}."

Noncreature spells cost {1} more to cast.

{T}: Add {C}{C}{C}.

You may sacrifice a Mountain rather than pay this spell's mana cost.

Thunderclap deals 3 damage to target creature.

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

As an additional cost to cast this spell, sacrifice an artifact.

Return target artifact card from your graveyard to the battlefield.

Whenever an opponent taps an artifact for mana, gain control of that artifact until the end of your next turn.

+2: Ugin, the Spirit Dragon deals 3 damage to any target.

-X: Exile each permanent with mana value X or less that's one or more colors.

-10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Destroy target artifact you don't control.

Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

{T}: Add {C}.

{T}, Sacrifice Wasteland: Destroy target nonbasic land.

Whipflare deals 2 damage to each nonartifact creature.

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.