Sacrifice a creature: Add {C}{C}.

Tap two untapped artifacts you control: Untap target artifact.

{3}, {T} or {U}, {T}: Return target creature to its owner's hand unless its controller pays {1}.

Imprint — When Isochron Scepter enters the battlefield, you may exile an instant card with mana value 2 or less from your hand. {2}, {T}: You may copy the exiled card. If you do, you may cast the copy without paying its mana cost.

Sacrifice an artifact: Add {C}{C}.

{T}, Sacrifice Lotus Petal: Add one mana of any color.

Equipped creature gets +2/+2, has intimidate, and is a black Zombie. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.) Whenever a nontoken creature is put into your graveyard from the battlefield, you may pay {4}. If you do, return that card to the battlefield and attach Nim Deathmantle to it. Equip {4}

Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.

You may have Sculpting Steel enter the battlefield as a copy of any artifact on the battlefield.

{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.

Untap all artifacts you control during each other player's untap step.

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Destroy all nonartifact creatures.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Put a +1/+1 counter on up to one target creature. That creature becomes an artifact in addition to its other types. II — Destroy all nonartifact creatures. III — Exile all opponents' graveyards.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.

Whenever you cast a historic spell, draw a card. (Artifacts, legendaries, and Sagas are historic.)

You may look at the top card of your library any time. You may cast artifact spells and colorless spells from the top of your library. {T}, Pay 1 life: Exile the top card of your library.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Flying As long as you control four or more artifacts, Shimmer Dragon has hexproof. Tap two untapped artifacts you control: Draw a card.

You may look at the top card of your library any time. As long as The Reality Chip is attached to a creature, you may play lands and cast spells from the top of your library. Reconfigure {2}{U} ({2}{U}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Basalt Monolith doesn't untap during your untap step. {T}: Add {C}{C}{C}. {3}: Untap Basalt Monolith.

Untap all nonland permanents you control.

{1}: Untap Staff of Domination. {2}, {T}: You gain 1 life. {3}, {T}: Untap target creature. {4}, {T}: Tap target creature. {5}, {T}: Draw a card.

{T}, Sacrifice five artifacts: Take an extra turn after this one.

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.

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

Chalice of the Void enters the battlefield with X charge counters on it. Whenever a player casts a spell with mana value equal to the number of charge counters on Chalice of the Void, counter that spell.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

Creature tokens you control have haste. At the beginning of combat on your turn, create a 2/1 blue Phyrexian Myr artifact creature token. Then you may choose a token you control. If you do, each other token you control becomes a copy of that token.

When Dockside Extortionist enters the battlefield, create X Treasure tokens, where X is the number of artifacts and enchantments your opponents control. (Treasure tokens are artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Each player who has cast a nonartifact spell this turn can't cast additional nonartifact spells.

{U}, {T}, Return an artifact you control to its owner's hand: You may put an artifact card from your hand onto the battlefield.

({U/P} can be paid with either {U} or 2 life.) You may have Phyrexian Metamorph enter the battlefield as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types.

Flying When Sharuum the Hegemon enters the battlefield, you may return target artifact card from your graveyard to the battlefield.

{2}{W}, {T}, Sacrifice Dispeller's Capsule: Destroy target artifact or enchantment.

{1}{B}, {T}, Sacrifice Executioner's Capsule: Destroy target nonblack creature.

{T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library.

{T}: Add {W}.

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

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

{T}: Add one mana of any color in your commander's color identity.

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

At the beginning of the end step, if you control no artifacts, sacrifice Glimmervoid. {T}: Add one mana of any color.

({T}: Add {W} or {B}.) As Godless Shrine enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}: Add {R}.

({T}: Add {W} or {U}.) As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}, Pay 1 life: Add one mana of any color.

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

Morphic Pool enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {B}.

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Power Depot enters the battlefield tapped. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast artifact spells or activate abilities of artifacts. Modular 1

({T}: Add {W}, {U}, or {B}.) Raffine's Tower enters the battlefield tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

({T}: Add {U}, {R}, or {W}.) Raugrin Triome enters the battlefield tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

You have no maximum hand size. {T}: Add {C}.

({T}: Add {R} or {W}.) As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {R}, {W}, or {B}.) Savai Triome enters the battlefield tapped. Cycling {3} ({3}, Discard this card: Draw a card.)

{T}, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.

Sea of Clouds enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {U}.

{T}: Add {U}.

Spectator Seating enters the battlefield tapped unless you have two or more opponents. {T}: Add {R} or {W}.

{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Activate only if you control an artifact.

({T}: Add {U} or {R}.) As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Training Center enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {R}.

{T}: Add {C}. {X}{X}, {T}, Sacrifice Treasure Vault: Create X Treasure tokens.

Each land is a Swamp in addition to its other land types.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Urza's Saga gains "{T}: Add {C}." II — Urza's Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control.'" III — Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.

Vault of Champions enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {B}.

{T}: Add {B}.

({T}: Add {U} or {B}.) As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}: Add one mana of any color in your commander's color identity.

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

You may spend mana as though it were mana of any color. {T}: Add {C}{C}{C}{C}{C}. {5}, {T}: Draw a card for each color among permanents you control.

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.

{T}: Add {C}. {T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

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

{T}: Reveal any number of artifact cards in your hand. Add {C}{C} for each card revealed this way.

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

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

You have no maximum hand size. {T}: Add {C}.

This spell costs {1} less to cast for each artifact you control. When Emry, Lurker of the Loch enters the battlefield, mill four cards. {T}: Choose target artifact card in your graveyard. You may cast that card this turn. (You still pay its costs. Timing rules still apply.)

{T}: Choose target artifact a player controls and target artifact card in that player's graveyard. If both targets are still legal as this ability resolves, that player simultaneously sacrifices the artifact and returns the artifact card to the battlefield.

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

{T}, Sacrifice three artifacts: Search your library for an artifact card, put it onto the battlefield, then shuffle.

Magical Tinkering — {W}, {T}, Sacrifice an artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value, put it onto the battlefield, then shuffle. Activate only as a sorcery.

When Trophy Mage enters the battlefield, you may search your library for an artifact card with mana value 3, reveal it, put it into your hand, then shuffle.