Choose one --

• Abrade deals 3 damage to target creature.

• Destroy target artifact.

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

Modular 4 (This creature enters the battlefield with four +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Riot (This creature enters the battlefield with your choice of an additional +1/+1 counter or haste.)

Menace

Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Whenever you cast a spell other than your first spell each turn, put a +1/+1 counter on Arcbound Tracker.

Flying

{R}: Arcbound Whelp gets +1/+0 until end of turn.

Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Flying

{R}: Artifact creatures you control get +1/+0 until end of turn.

Unearth {3}{R}{R} ({3}{R}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Prototype {2}{R} -- 3/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

Haste

Equipped creature gets +1/+0 and has haste.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Trample

{3}{R}, Sacrifice an artifact: Bosh, Iron Golem deals damage equal to the sacrificed artifact's mana value to any target.

When Breya's Apprentice enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying.

{T}, Sacrifice an artifact: Choose one --

• Exile the top card of your library. Until the end of your next turn, you may play that card.

• Target creature gets +2/+0 until end of turn.

Trample

Equipped creature gets +3/+2 and has trample.

Reconfigure {5} ({5}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Target attacking creature gets +3/+3 until end of turn. If it's an artifact creature, it gains trample until end of turn.

You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, create a 1/1 red Phyrexian Goblin creature token with haste.

When Chancellor of the Forge enters the battlefield, create X 1/1 red Phyrexian Goblin creature tokens with haste, where X is the number of creatures you control.

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.

First strike

When Combustible Gearhulk enters the battlefield, target opponent may have you draw three cards. If the player doesn't, you mill three cards, then Combustible Gearhulk deals damage to that player equal to the total mana value of those cards.

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

Sacrifice Commander's Sphere: Draw a card.

First strike

As an additional cost to cast red permanent spells, you may pay 2 life. Those spells cost {R} less to cast if you paid life this way. This effect reduces only the amount of red mana you pay.

Whenever you cast a red permanent spell, Defiler of Instinct deals 1 damage to any target.

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.

Flash

This spell costs {1} less to cast for each attacking creature you control.

When Embercleave enters the battlefield, attach it to target creature you control.

Equipped creature gets +1/+1 and has double strike and trample.

Equip {3}

Discard a card, then draw a card.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Prototype {2}{R} -- 1/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

Flying

{2}: Fallaji Dragon Engine gets +1/+0 until end of turn.

Feedback Bolt deals damage to target player or planeswalker equal to the number of artifacts you control.

Fire Diamond enters the battlefield tapped.

{T}: Add {R}.

Flame-Blessed Bolt deals 2 damage to target creature or planeswalker. If that creature or planeswalker would die this turn, exile it instead.

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

Flying

When Furnace Dragon enters the battlefield, if you cast it from your hand, exile all artifacts.

Whenever Furnace Scamp deals combat damage to a player, you may sacrifice it. If you do, Furnace Scamp deals 3 damage to that player.

Galvanic Blast deals 2 damage to any target.

Metalcraft -- Galvanic Blast deals 4 damage instead if you control three or more artifacts.

{T}: Add {R}. Put a stash counter on Glittering Stockpile.

{T}, Sacrifice Glittering Stockpile: Add X mana of any one color, where X is the number of stash counters on Glittering Stockpile.

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.

First strike

Menace (This creature can't be blocked except by two or more creatures.)

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

Whenever you cast an artifact spell, you may put a charge counter on Golem Foundry.

Remove three charge counters from Golem Foundry: Create a 3/3 colorless Golem artifact creature token.

({R/P} can be paid with either {R} or 2 life.)

Gut Shot deals 1 damage to any target.

{T}: Add {R}.

Sacrifice Heart of Ramos: Add {R}.

Flying, haste

{1}{R}: Hellkite Igniter gets +X/+0 until end of turn, where X is the number of artifacts you control.

{R/P}: Immolating Souleater gets +1/+0 until end of turn. ({R/P} can be paid with either {R} or 2 life.)

{R}, Sacrifice Implement of Combustion: It deals 1 damage to target player or planeswalker.

When Implement of Combustion is put into a graveyard from the battlefield, draw a card.

Whenever one or more artifacts enter the battlefield under your control, Ingenious Artillerist deals that much damage to each opponent.

{T}: Add {R}.

Flash

When Javelin of Lightning enters the battlefield, attach it to target creature you control.

As long as it's your turn, equipped creature gets +2/+0 and has first strike.

Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

Choose one. If you control a commander as you cast this spell, you may choose both instead.

• Add {R} for each card in target opponent's hand.

• Exile the top three cards of your library. You may play them this turn.

Trample

Frenzied Rampage -- At the beginning of combat on your turn, choose an opponent at random. Knight Rampager attacks that player this combat if able.

When Knight Rampager dies, it deals 4 damage to target opponent chosen at random.

Flying, haste

Metalcraft -- {4}: Return Kuldotha Phoenix from your graveyard to the battlefield. Activate only during your upkeep and only if you control three or more artifacts.

As an additional cost to cast this spell, sacrifice an artifact.

Create three 1/1 red Goblin creature tokens.

Equipped creature gets +1/+0 and has trample.

{2}{R}, Sacrifice Lightning Spear: It deals 3 damage to any target.

Equip {1}

Double strike

Equipped creature has double strike.

Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

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.

This spell can't be countered.

Magic Missile deals 3 damage divided as you choose among one, two, or three targets.

({R/P} can be paid with either {R} or 2 life.)

Flying

{R/P}: Moltensteel Dragon gets +1/+0 until end of turn.

Obliterating Bolt deals 4 damage to target creature or planeswalker. If that creature or planeswalker would die this turn, exile it instead.

When Priest of Urabrask enters the battlefield, add {R}{R}{R}.

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

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

Haste

Equipped creature gets +1/+1 and has haste.

Reconfigure {R} ({R}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Whenever an artifact enters the battlefield under your control, Reckless Fireweaver deals 1 damage to each opponent.

Red Sun's Zenith deals X damage to any target. If a creature dealt damage this way would die this turn, exile it instead. Shuffle Red Sun's Zenith into its owner's library.

Menace

When Ruin Grinder dies, each player may discard their hand and draw seven cards.

Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

({R/P} can be paid with either {R} or 2 life.)

Nonartifact creatures can't block this turn.

Improvise (Each artifact you tap after you're done activating mana abilities pays for {1}.)

Reveal the top X cards of your library. You may put any number of artifact cards with mana value X or less from among them onto the battlefield. Then put all cards revealed this way that weren't put onto the battlefield into your graveyard.

Flash

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

{T}: Target creature gets +0/+1 until end of turn.

When Scrapwork Mutt enters the battlefield, you may discard a card. If you do, draw a card.

Unearth {1}{R} ({1}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Scrapyard Salvo deals damage to target player or planeswalker equal to the number of artifact cards in your graveyard.

At the beginning of your upkeep or whenever you cast a red spell, put a charge counter on Shrine of Burning Rage.

{3}, {T}, Sacrifice Shrine of Burning Rage: It deals damage equal to the number of charge counters on it to any target.

Prototype {3}{R}{R} -- 2/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

Trample, haste

When Skitterbeam Battalion enters the battlefield, if you cast it, create two tokens that are copies of it.

Slag Fiend's power and toughness are each equal to the number of artifact cards in all graveyards.

({R/P} can be paid with either {R} or 2 life.)

Haste

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

Equipped creature gets +1/+1 and has trample and "Whenever this creature deals combat damage to a player or planeswalker, create that many Treasure tokens."

Equip {3}

When Thopter Engineer enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying.

Artifact creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

Flash

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

{T}: Target creature gets +1/+0 until end of turn.

When Tormentor Exarch enters the battlefield, choose one --

• Target creature gets +2/+0 until end of turn.

• Target creature gets -0/-2 until end of turn.

{8}, {T}: Tower of Calamities deals 12 damage to target creature.

Reach

When Twinshot Sniper enters the battlefield, it deals 2 damage to any target.

Channel -- {1}{R}, Discard Twinshot Sniper: It deals 2 damage to any target.

Unleash Shell deals 5 damage to target creature or planeswalker and 2 damage to that permanent's controller.

Creatures you control have haste.

Creatures your opponents control enter the battlefield tapped.

Destroy target artifact you don't control.

Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Each opponent sacrifices an artifact. For each artifact sacrificed this way, you create a Treasure token.

Flashback {8}{R}{R}. This spell costs {X} less to cast this way, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

As an additional cost to cast this spell, you may sacrifice an artifact.

Voltage Surge deals 2 damage to target creature or planeswalker. If this spell's additional cost was paid, Voltage Surge deals 4 damage instead.

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