As an additional cost to cast this spell, you may exile any number of blue cards from your hand. This spell costs {2} less to cast for each card exiled this way. Up to X target creatures phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

For Mirrodin! (When this Equipment enters the battlefield, create a 2/2 red Rebel creature token, then attach this to it.) Equipped creature gets +1/-1. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Flash When Chrome Prowler enters the battlefield, tap target creature an opponent controls.

Indestructible Darksteel Juggernaut's power and toughness are each equal to the number of artifacts you control. Darksteel Juggernaut attacks each combat if able.

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.)

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

Juggernauts you control attack each combat if able. Juggernauts you control can't be blocked by Walls. Other creatures you control have base power and toughness 5/3 and are Juggernauts in addition to their other creature types.

For Mirrodin! (When this Equipment enters the battlefield, create a 2/2 red Rebel creature token, then attach this to it.) As long as it's your turn, equipped creature has first strike and trample. Equip {2}{R}

Flash Flying You may cast colorless spells and artifact spells as though they had flash. Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator, Urza's Battlethopter's power, put a +1/+1 counter on Liberator.

Haste Lieutenant — At the beginning of combat on your turn, if you control your commander, create a 1/1 colorless Thopter artifact creature token with flying. That token gains haste until end of turn.

Flying, vigilance When Malcator's Watcher dies, draw a card.

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

Flying

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) Whenever you cast an artifact spell, put a +1/+1 counter on Patchwork Automaton.

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.

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

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Counter target spell.

Whenever Dragonspark Reactor or another artifact enters the battlefield under your control, put a charge counter on Dragonspark Reactor. {4}, Sacrifice Dragonspark Reactor: It deals damage equal to the number of charge counters on it to target player and that much damage to up to one target creature.

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.

Enchant creature Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.) Whenever enchanted creature attacks, you scry 2.

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.

Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.) I, II — Another target nonland permanent phases out. It can't phase in for as long as you control The Phasing of Zhalfir. III — Destroy all creatures. For each creature destroyed this way, its controller creates a 2/2 black Phyrexian creature token.

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

Forgotten Cave enters the battlefield tapped. {T}: Add {R}. Cycling {R} ({R}, Discard this card: Draw a card.)

({T}: Add {U}.)

Lonely Sandbar enters the battlefield tapped. {T}: Add {U}. Cycling {U} ({U}, Discard this card: Draw a card.)

({T}: Add {U} or {R}.) Molten Tributary enters the battlefield tapped.

({T}: Add {R}.)

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

Silverbluff Bridge enters the battlefield tapped. Indestructible {T}: Add {U} or {R}.

({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.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain. {T}: Add {U} or {R}.

Equipped creature gets +1/+1 for each counter on it. Equipped permanent isn't a planeswalker and is a creature in addition to its other types. (Loyalty abilities can still be activated.) Equip planeswalker {1} Equip {3}

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.

(Gain the next level as a sorcery to add its ability.) The first artifact spell you cast each turn costs {1} less to cast. {1}{U}: Level 2 When this Class becomes level 2, reveal cards from the top of your library until you reveal an artifact card. Put that card into your hand and the rest on the bottom of your library in a random order. {5}{U}: Level 3 At the beginning of your end step, create a token that's a copy of target artifact you control.

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

+1: Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") −1: Pay any amount of mana. Look at that many cards from the top of your library, then put one of those cards into your hand and the rest on the bottom of your library in a random order. −7: You get an emblem with "Tap an untapped artifact you control: This emblem deals 1 damage to any target."

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

You may have Machine God's Effigy enter the battlefield as a copy of any creature on the battlefield, except it's an artifact and it has "{T}: Add {U}." (It's not a creature.) {T}: Add {U}.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

Earthquake deals X damage to each creature without flying and each player.

When Eye of Malcator enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.) Whenever another artifact enters the battlefield under your control, Eye of Malcator becomes a 4/4 Phyrexian Eye artifact creature until end of turn.

Exile the top three cards of your library. Until the end of your next turn, you may play those cards. Create three Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

{1}, Sacrifice Surgical Skullbomb: Draw a card. {2}{U}, Sacrifice Surgical Skullbomb: Return target creature to its owner's hand. Draw a card. Activate only as a sorcery.

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

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Flying, haste Whenever Chiss-Goria, Forge Tyrant attacks, exile the top five cards of your library. You may cast an artifact spell from among them this turn. If you do, it has affinity for artifacts.

Indestructible {T}: Add {C}.

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

{T}: Add {R}.

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.

{T}: Add {C}. {4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add {U}.