{T}: Add {C}.

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

{T}: Add {C}.

{T}: Add {W} or {U}. Adarkar Wastes deals 1 damage to you.

Whenever you cast a spell, you gain 1 life for each spell you've cast this turn.

Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

Flying

Whenever Aetherstorm Roc or another creature enters the battlefield under your control, you get {E} (an energy counter).

Whenever Aetherstorm Roc attacks, you may pay {E}{E}. If you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.

Whenever a permanent you control is put into a graveyard, you get {E} (an energy counter).

{T}, Pay {E}{E}{E}{E}{E}{E}: Look at the top six cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order.

Whenever you put one or more counters on a permanent or player, All Will Be One deals that much damage to target opponent, creature an opponent controls, or planeswalker an opponent controls.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

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

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

{1}, {T}: Add {W}{U}.

Basalt Monolith doesn't untap during your untap step.

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

{3}: Untap Basalt Monolith.

{1}, {T}: Add {R}{W}.

{1}, {T}, Sacrifice Chromatic Sphere: Add one mana of any color. Draw a card.

Whenever City of Brass becomes tapped, it deals 1 damage to you.

{T}: Add one mana of any color.

Tap two untapped artifacts you control: Untap target artifact.

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.

Deserted Beach enters the battlefield tapped unless you control two or more other lands.

{T}: Add {W} or {U}.

Tap target creature.

Metalcraft -- If you control three or more artifacts, exile that creature.

Whenever you cast an artifact spell, you get {E} (an energy counter).

{T}, Pay {E}: Target creature gets +1/+0 and gains trample and haste until end of turn.

{T}, Pay {E}{E}{E}: Draw a card.

{T}, Pay {E}{E}{E}{E}{E}: Return target artifact card from your graveyard to the battlefield tapped.

Whenever you cast an instant or sorcery spell, you get {E}{E} (two energy counters).

{T}, Pay {E}{E}{E}{E}{E}: Dynavolt Tower deals 3 damage to any target.

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.

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.)

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Flying

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

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.

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

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

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

Counter target noncreature spell.

This spell costs {1} more to cast for each target beyond the first.

Fireball deals X damage divided evenly, rounded down, among any number of targets.

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

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.

Counter target spell.

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

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

Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island.

{T}: Add {W} or {U}.

When Goblin Engineer enters the battlefield, you may search your library for an artifact card, put it into your graveyard, then shuffle.

{R}, {T}, Sacrifice an artifact: Return target artifact card with mana value 3 or less from your graveyard to the battlefield.

Whenever Gonti's Aether Heart or another artifact enters the battlefield under your control, you get {E}{E} (two energy counters).

Pay {E}{E}{E}{E}{E}{E}{E}{E}, Exile Gonti's Aether Heart: Take an extra turn after this one.

Grim Monolith doesn't untap during your untap step.

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

{4}: Untap Grim Monolith.

({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.

Whenever an artifact enters the battlefield under your control, Hedron Detonator deals 1 damage to target opponent.

{T}, Sacrifice two artifacts: Exile the top card of your library. You may play that card this turn.

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life.

{T}: Add {C}.

{4}, {T}, Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

{1}, {T}: Add {U}{R}.

Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures.

Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card.

Flying

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

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

Double strike, haste

Whenever Lightning Runner attacks, you get {E}{E} (two energy counters), then you may pay {E}{E}{E}{E}{E}{E}{E}{E}. If you pay, untap all creatures you control, and after this phase, there is an additional combat phase.

Discard your hand, Sacrifice Lion's Eye Diamond: Add three mana of any one color. Activate only as an instant.

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

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

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}.

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

Flying

Whenever you cast an artifact spell, you may untap target creature.

{T}, Sacrifice Mishra's Bauble: Look at the top card of target player's library. Draw a card at the beginning of the next turn's upkeep.

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

{T}: Add one mana of any color among legendary creatures and planeswalkers you control.

If Mox Diamond would enter the battlefield, you may discard a land card instead. If you do, put Mox Diamond onto the battlefield. If you don't, put it into its owner's graveyard.

{T}: Add one mana of any color.

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

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

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.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

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.

If an artifact or creature entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

({T}: Add {R} or {W}.)

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

{R}, Sacrifice Pyrite Spellbomb: It deals 2 damage to any target.

{1}, Sacrifice Pyrite Spellbomb: Draw a card.

({T}: Add {U}, {R}, or {W}.)

Raugrin Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

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

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.

({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.

Whenever you cast a noncreature spell, create a 1/1 colorless Servo artifact creature token.

-2: Target artifact you control becomes a copy of another target artifact or creature you control until end of turn, except it's an artifact in addition to its other types.

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying.

{1}{U}, Sacrifice two artifacts: 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.

Whenever Scrap Trawler or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Sea of Clouds enters the battlefield tapped unless you have two or more opponents.

{T}: Add {W} or {U}.

{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.

{T}: Add {C}.

{T}: Add {U} or {R}. Shivan Reef deals 1 damage to you.

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

Spectator Seating enters the battlefield tapped unless you have two or more opponents.

{T}: Add {R} or {W}.

({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.

Stormcarved Coast enters the battlefield tapped unless you control two or more other lands.

{T}: Add {U} or {R}.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.

{T}: Add {U} or {R}.

Exile target creature. Its controller gains life equal to its power.

{T}: Add {C}.

{T}: Add {R} or {W}. Talisman of Conviction deals 1 damage to you.

{T}: Add {C}.

{T}: Add {U} or {R}. Talisman of Creativity deals 1 damage to you.

{T}: Add {C}.

{T}: Add {W} or {U}. Talisman of Progress deals 1 damage to you.

Trample

Whenever you get one or more {E} (energy counters), Territorial Gorger gets +2/+2 until end of turn.

Draw three cards. Then discard two cards unless you discard an artifact card.

Affinity for artifacts

Flying

When Thought Monitor enters the battlefield, draw two cards.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

Draw two cards.

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

Training Center enters the battlefield tapped unless you have two or more opponents.

{T}: Add {U} or {R}.

({T}: Add {W} or {U}.)

Each nonland card in your graveyard has escape. The escape cost is equal to the card's mana cost plus exile three other cards from your graveyard. (You may cast cards from your graveyard for their escape cost.)

At the beginning of the end step, sacrifice Underworld Breach.

(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.

When Urza, Lord High Artificer enters the battlefield, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

Tap an untapped artifact you control: Add {U}.

{5}: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

({T}: Add {U} or {R}.)

Walking Ballista enters the battlefield with X +1/+1 counters on it.

{4}: Put a +1/+1 counter on Walking Ballista.

Remove a +1/+1 counter from Walking Ballista: It deals 1 damage to any target.

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

Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.