Artificer's Epiphany

Draw two cards. If you control no artifacts, discard a card.

Watchwing Scarecrow

This creature has vigilance as long as you control a white creature.
This creature has flying as long as you control a blue creature.

Hierophant's Chalice

When this artifact enters, target opponent loses 1 life and you gain 1 life.
{T}: Add {C}.

Scuttlemutt

{T}: Add one mana of any color.
{T}: Target creature becomes the color or colors of your choice until end of turn.

Armillary Sphere

{2}, {T}, Sacrifice this artifact: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.

Thoughtcast

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

Workshop Assistant

When this creature dies, return another target artifact card from your graveyard to your hand.

Metallic Rebuke

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Counter target spell unless its controller pays {3}.

Pilgrim's Eye

Flying
When this creature enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Vedalken Engineer

{T}: Add two mana of any one color. Spend this mana only to cast artifact spells or activate abilities of artifacts.

Dross Scorpion

Whenever this creature or another artifact creature dies, you may untap target artifact.

Wizard Replica

Flying
{U}, Sacrifice this creature: Counter target spell unless its controller pays {2}.

One-Eyed Scarecrow

Defender
Creatures with flying your opponents control get -1/-0.

Seat of the Synod

Urza's Chalice

Whenever a player casts an artifact spell, you may pay {1}. If you do, you gain 1 life.

Rusted Relic

Metalcraft — This artifact is a 5/5 Golem artifact creature as long as you control three or more artifacts.

Frogmite

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

Lotus Petal

{T}, Sacrifice this artifact: Add one mana of any color.

Prophetic Prism

When this artifact enters, draw a card.
{1}, {T}: Add one mana of any color.

Darksteel Citadel

Consulate Skygate

Defender
Reach (This creature can block creatures with flying.)

Origin Spellbomb

{1}, {T}, Sacrifice this artifact: Create a 1/1 colorless Myr artifact creature token.
When this artifact is put into a graveyard from the battlefield, you may pay {W}. If you do, draw a card.

Flayer Husk

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +1/+1.
Equip {2}

Vedalken Certarch

Metalcraft — {T}: Tap target artifact, creature, or land. Activate only if you control three or more artifacts.

Welding Jar

Sacrifice this artifact: Regenerate target artifact.

Guardians of Meletis

Relic of Progenitus

{T}: Target player exiles a card from their graveyard.
{1}, Exile this artifact: Exile all graveyards. Draw a card.

Thought Vessel

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

Screeching Silcaw

Flying
Metalcraft — Whenever this creature deals combat damage to a player, if you control three or more artifacts, that player mills four cards.

Golem Foundry

Whenever you cast an artifact spell, you may put a charge counter on this artifact.
Remove three charge counters from this artifact: Create a 3/3 colorless Golem artifact creature token.

Darksteel Ingot

Indestructible (Effects that say "destroy" don't destroy this artifact.)
{T}: Add one mana of any color.

Opaline Unicorn

Implement of Examination

{U}, Sacrifice this artifact: Draw a card.
When this artifact is put into a graveyard from the battlefield, draw a card.

Spire Serpent

Defender
Metalcraft - As long as you control three or more artifacts, this creature gets +2/+2 and can attack as though it didn't have defender.

Azorius Signet

Mycosynth Wellspring

When this artifact enters or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

War Report

You gain life equal to the number of creatures on the battlefield plus the number of artifacts on the battlefield.

Fieldmist Borderpost

You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost.
This artifact enters tapped.
{T}: Add {W} or {U}.

Alchemist's Vial

When this artifact enters, draw a card.
{1}, {T}, Sacrifice this artifact: Target creature can't attack or block this turn.

Ardent Recruit

Metalcraft - This creature gets +2/+2 as long as you control three or more artifacts.

Apostle's Blessing

({W/P} can be paid with either {W} or 2 life.)
Target artifact or creature you control gains protection from artifacts or from the color of your choice until end of turn.

Etherium Sculptor

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

Court Homunculus

This creature gets +1/+1 as long as you control another artifact.

Alloy Myr

Auriok Sunchaser

Metalcraft — As long as you control three or more artifacts, this creature gets +2/+2 and has flying.

Override

Counter target spell unless its controller pays {1} for each artifact you control.

Gold Myr

Ur-Golem's Eye

Sisay's Ring

Esper Cormorants

Porcelain Legionnaire

({W/P} can be paid with either {W} or 2 life.)
First strike

Spire Golem

Affinity for Islands (This spell costs {1} less to cast for each Island you control.)
Flying

Whispersilk Cloak

Equipped creature can't be blocked and has shroud. (It can't be the target of spells or abilities.)
Equip {2}

Pristine Talisman

Ghostly Flicker

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

Yotian Soldier

Silver Myr

Sanctum Gargoyle

Flying
When this creature enters, you may return target artifact card from your graveyard to your hand.

Ancient Den

Faerie Mechanist

Flying
When this creature enters, look at the top three cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Ichor Wellspring

When this artifact enters or is put into a graveyard from the battlefield, draw a card.

Walking Atlas

{T}: You may put a land card from your hand onto the battlefield.

Stoic Rebuttal

Metalcraft — This spell costs {1} less to cast if you control three or more artifacts.
Counter target spell.

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Razor Barrier

Target permanent you control gains protection from artifacts or from the color of your choice until end of turn.

Ethercaste Knight

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)