Renowned Weaponsmith

{T}: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts.
{U}, {T}: Search your library for a card named Heart-Piercer Bow or Vial of Dragonfire, reveal it, put it into your hand, then shuffle.

Skyswimmer Koi

Flying
Whenever an artifact you control enters, you may draw a card. If you do, discard a card.

Simic Signet

Salivating Gremlins

Whenever an artifact you control enters, this creature gets +2/+0 and gains trample until end of turn.

Rakdos Signet

Abrade

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Azorius Signet

Mistvault Bridge

This land enters tapped.
Indestructible
{T}: Add {U} or {B}.

Plains

Orzhov Signet

Farseek

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Concussive Bolt

Concussive Bolt deals 4 damage to target player or planeswalker.
Metalcraft — If you control three or more artifacts, creatures controlled by that player or by that planeswalker's controller can't block this turn.

Leonin Elder

Whenever an artifact enters, you may gain 1 life.

Muddle the Mixture

Counter target instant or sorcery spell.
Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Krark-Clan Shaman

Sacrifice an artifact: This creature deals 1 damage to each creature without flying.

Goldmire Bridge

This land enters tapped.
Indestructible
{T}: Add {W} or {B}.

Artificer's Assistant

Flying
Whenever you cast a historic spell, scry 1. (Artifacts, legendaries, and Sagas are historic. To scry 1, look at the top card of your library, then you may put that card on the bottom.)

Lens Flare

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Lens Flare deals 5 damage to target attacking or blocking creature.

Darkmoss Bridge

This land enters tapped.
Indestructible
{T}: Add {B} or {G}.

Arctic Treeline

({T}: Add {G} or {W}.)
This land enters tapped.

Selesnya Signet

Tree of Tales

Terminate

Destroy target creature. It can't be regenerated.

Steelfin Whale

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Whenever an artifact you control enters, untap this creature.

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}.

Vedalken Engineer

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

Krark-Clan Stoker

Orim's Thunder

Kicker {R} (You may pay an additional {R} as you cast this spell.)
Destroy target artifact or enchantment. If this spell was kicked, it deals damage equal to that permanent's mana value to target creature.

Orcish Vandal

{T}, Sacrifice an artifact: This creature deals 2 damage to any target.

Darksteel Citadel

Tanglepool Bridge

This land enters tapped.
Indestructible
{T}: Add {G} or {U}.

Glacial Floodplain

({T}: Add {W} or {U}.)
This land enters tapped.

Thornglint Bridge

This land enters tapped.
Indestructible
{T}: Add {G} or {W}.

Stoic Rebuttal

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

Swamp

Arcane Denial

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.
You draw a card at the beginning of the next turn's upkeep.

Disciple of the Vault

Whenever an artifact is put into a graveyard from the battlefield, you may have target opponent lose 1 life.

Sojourner's Companion

Affinity for artifacts
Artifact landcycling {2} ({2}, Discard this card: Search your library for an artifact land card, reveal it, put it into your hand, then shuffle.)

Sage of Lat-Nam

Thoughtcast

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

Razortide Bridge

This land enters tapped.
Indestructible
{T}: Add {W} or {U}.

Mountain

Atog

Sacrifice an artifact: This creature gets +2/+2 until end of turn.

Machinate

Look at the top X cards of your library, where X is the number of artifacts you control. Put one of those cards into your hand and the rest on the bottom of your library in any order.

Slagwoods Bridge

This land enters tapped.
Indestructible
{T}: Add {R} or {G}.

Sulfurous Mire

({T}: Add {B} or {R}.)
This land enters tapped.

Go for the Throat

Great Furnace

Rustvale Bridge

This land enters tapped.
Indestructible
{T}: Add {R} or {W}.

Forest

Nim Shrieker

Flying
This creature gets +1/+0 for each artifact you control.

Boros Signet

Highland Forest

({T}: Add {R} or {G}.)
This land enters tapped.

Ice Tunnel

({T}: Add {U} or {B}.)
This land enters tapped.

Dimir Signet

Command Tower

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

Soul's Fire

Target creature you control deals damage equal to its power to any target.

Somber Hoverguard

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

Gruul Signet

Island

Aether Spellbomb

{U}, Sacrifice this artifact: Return target creature to its owner's hand.
{1}, Sacrifice this artifact: Draw a card.

Vault of Whispers

Myr Retriever

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

Nihil Spellbomb

{T}, Sacrifice this artifact: Exile target player's graveyard.
When this artifact is put into a graveyard from the battlefield, you may pay {B}. If you do, draw a card.

Dimir Infiltrator

This creature can't be blocked.
Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Silverbluff Bridge

This land enters tapped.
Indestructible
{T}: Add {U} or {R}.

Snowfield Sinkhole

({T}: Add {W} or {B}.)
This land enters tapped.

Izzet Signet

Myr Enforcer

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

Transguild Courier

Nature's Lore

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Volatile Fjord

({T}: Add {U} or {R}.)
This land enters tapped.

Drossforge Bridge

This land enters tapped.
Indestructible
{T}: Add {B} or {R}.

Rite of Consumption

As an additional cost to cast this spell, sacrifice a creature.
Rite of Consumption deals damage equal to the sacrificed creature's power to target player or planeswalker. You gain life equal to the damage dealt this way.

Arcane Signet

Fangren Marauder

Whenever an artifact is put into a graveyard from the battlefield, you may gain 5 life.

Override

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

Three Visits

Search your library for a Forest card, put it onto the battlefield, then shuffle.

Ancient Den

Welding Sparks

Welding Sparks deals X damage to target creature, where X is 3 plus the number of artifacts you control.

All That Glitters

Enchant creature
Enchanted creature gets +1/+1 for each artifact and/or enchantment you control.

Rimewood Falls

({T}: Add {G} or {U}.)
This land enters tapped.

Counterspell

Shred Memory

Exile up to four target cards from a single graveyard.
Transmute {1}{B}{B} ({1}{B}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

Woodland Chasm

({T}: Add {B} or {G}.)
This land enters tapped.

Golgari Signet

Gearseeker Serpent

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
{5}{U}: This creature can't be blocked this turn.

Ingenious Artillerist

Whenever one or more artifacts you control enter, this creature deals that much damage to each opponent.

Gravitic Punch

Target creature you control deals damage equal to its power to target player.
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Alpine Meadow

({T}: Add {R} or {W}.)
This land enters tapped.

Cabal Paladin

Whenever you cast a historic spell, this creature deals 2 damage to each opponent. (Artifacts, legendaries, and Sagas are historic.)

Reckless Fireweaver

Whenever an artifact you control enters, this creature deals 1 damage to each opponent.

Galvanic Blast

Galvanic Blast deals 2 damage to any target.
Metalcraft — Galvanic Blast deals 4 damage instead if you control three or more artifacts.

Seat of the Synod

Cranial Plating

Equipped creature gets +1/+0 for each artifact you control.
{B}{B}: Attach this Equipment to target creature you control.
Equip {1}

Fling

As an additional cost to cast this spell, sacrifice a creature.
Fling deals damage equal to the sacrificed creature's power to any target.