Mishra's Workshop

Tap to add 3 colorless mana to your mana pool. This mana may only be used to cast artifacts.

Sensei's Divining Top

{1}: Look at the top three cards of your library, then put them back in any order. {T}: Draw a card, then put Sensei's Divining Top on top of its owner's library.

Future Sight

Play with the top card of your library revealed. You may play the top card of your library as though it were in your hand.

Seat of the Synod

(Seat of the Synod isn't a spell.) {T}: Add {U} to your mana pool.

Mana Crypt

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {2} to your mana pool.

Emrakul, the Aeons Torn

Emrakul, the Aeons Torn can't be countered. When you cast Emrakul, take an extra turn after this one. Flying, protection from colored spells, annihilator 6 When Emrakul is put into a graveyard from anywhere, its owner shuffles his or her graveyard into his or her library.

Mox Opal

Metalcraft — {T}: Add one mana of any color to your mana pool. Activate this ability only if you control three or more artifacts.

Lotus Petal

Sacrifice Lotus Petal: Add one mana of any color to your mana pool. Play this ability as a mana source.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Remove target player's graveyard from the game.

Mana Vault

Tap to add 3 colorless mana to your mana pool. Mana Vault doesn't untap normally during untap phase; to untap it, you must pay 4 mana. If Mana Vault remains tapped during upkeep it does 1 damage to you. Tapping this artifact can be played as an interrupt.

Mox Emerald

Add 1 green mana to your mana pool. Tapping this artifact can be played as an interrupt.

Time Vault

{T}: Gain an additional turn after the current one. Time Vault doesn't untap normally during untap phase; to untap it, you must skip a turn. Time Vault begins tapped.

Mox Sapphire

Add 1 blue mana to your mana pool. Tapping this artifact can be played as an interrupt.

Time Walk

Take an extra turn after this one.

Tropical Island

Counts as both forest and islands and is affected by spells that affect either. Tap to add either {G} or {U} to your mana pool.

Mox Jet

Add 1 black mana to your mana pool. Tapping this artifact can be played as an interrupt.

Timetwister

Set Timetwister aside in a new graveyard pile. Shuffle your hand, library, and graveyard together into a new library and draw a new hand of seven cards, leaving all cards in play where they are; opponent must do the same.

Mox Ruby

Add 1 red mana to your mana pool. Tapping this artifact can be played as an interrupt.

Mox Pearl

Add 1 white mana to your mana pool. Tapping this artifact can be played as an interrupt.

Ancestral Recall

Draw 3 cards or force opponent to draw 3 cards.

Black Lotus

Adds 3 mana of any single color of your choice to your mana pool, then is discarded. Tapping this artifact can be played as an interrupt.

Defense Grid

During each player's turn, spells played by another player cost an additional {3}.

Memory Jar

{T}, Sacrifice Memory Jar: Each player sets aside his or her hand, face down, and draws seven cards. At the end of turn, each player discards his or her hand and returns to his or her hand each card he or she set aside this way.

Tinker

At the time you play Tinker, sacrifice an artifact. Search your library for an artifact card and put that artifact into play. Shuffle your library afterward.

Grim Monolith

Grim Monolith does not untap during your untap phase. {4}: Untap Grim Monolith. {T}: Add three colorless mana to your mana pool. Play this ability as a mana source.

Urza's Blueprints

Echo (During your next upkeep after this permanent comes into play under your control, pay its casting cost or sacrifice it.) {T}: Draw a card.

Voltaic Key

{1}, {T}: Untap target artifact.

Tolarian Academy

{T}: Add {U} to your mana pool for each artifact you control.

Temporal Aperture

{5}, {T}: Shuffle your library and reveal the top card. Until end of turn, as long that card remains on top of your library, you may play that card as if it were in your hand without paying its casting cost. (If the spell has {X} in its casting cost, X is 0.)

Sol Ring

Foundry Inspector

Paradoxical Outcome

Paradox Engine

Walking Ballista