Basalt Monolith doesn't untap during your untap step.

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

{3}: Untap Basalt Monolith.

As an additional cost to cast this spell, discard a card.

Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Sacrifice Bottle Gnomes: You gain 3 life.

Trample

When Bottle Golems dies, you gain life equal to its power.

{4}, {T}, Exile Brittle Effigy: Exile target creature.

{X}, {T}: Untap X target lands.

{X}, {T}: Search your library for a creature card with mana value X or less, reveal it, put it into your hand, then shuffle.

Tap two untapped artifacts you control: Untap target artifact.

{3}, {T}: Regenerate target artifact creature.

Reach

{2}, {T}: Put target card from a graveyard on the bottom of its owner's library.

{7}: Create a token that's a copy of target artifact. That token gains haste. Exile it at the beginning of the next end step.

{4}, Sacrifice Copper Gnomes: You may put an artifact card from your hand onto the battlefield.

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

{3}, {T}, Sacrifice Dreamstone Hedron: Draw three cards.

{2}{R}, {T}: Create a token that's a copy of target creature card in your graveyard, except it's an artifact in addition to its other types. It gains haste. Sacrifice it at the beginning of the next end step.

{T}, Exile Feldon's Cane: Shuffle your graveyard into your library.

Fire Diamond enters the battlefield tapped.

{T}: Add {R}.

Flash

{3}, {T}: Untap target artifact.

Grim Monolith doesn't untap during your untap step.

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

{4}: Untap Grim Monolith.

When Ichor Wellspring enters the battlefield or 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.

Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for {1}.)

Investigator's Journal enters the battlefield with a number of suspect counters on it equal to the greatest number of creatures a player controls.

{2}, {T}, Remove a suspect counter from Investigator's Journal: Draw a card.

{2}, Sacrifice Investigator's Journal: Draw a card.

{T}: Add {R}.

Whenever you activate an ability of an artifact, if it isn't a mana ability, you may pay {R}. If you do, copy that ability. You may choose new targets for the copy.

{T}: Add {C}.

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

Mage-Ring Responder doesn't untap during your untap step.

{7}: Untap Mage-Ring Responder.

Whenever Mage-Ring Responder attacks, it deals 7 damage to target creature defending player controls.

{1}, {T}: Untap another target artifact.

{3}, {T}: Target creature can't be blocked this turn.

This spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control.

Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

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

Sacrifice Myr Scrapling: Put a +1/+1 counter on target creature.

{2}: Narstad Scrapper gets +1/+0 until end of turn.

{2}, {T}, Sacrifice Navigation Orb: Search your library for up to two basic land cards and/or Gate cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Flying

{T}: Add one mana of any color.

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

Whenever a nontoken artifact is put into your graveyard from the battlefield, return that card to your hand unless target opponent has Pia's Revolution deal 3 damage to them.

{8}, {T}: Search your library for a permanent card, put it onto the battlefield, then shuffle.

{T}: Target creature gets +1/+1 and gains flying, first strike, and trample until end of turn.

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

Reckoner Bankbuster enters the battlefield with three charge counters on it.

{2}, {T}, Remove a charge counter from Reckoner Bankbuster: Draw a card. Then if there are no charge counters on Reckoner Bankbuster, create a Treasure token and a 1/1 colorless Pilot creature token with "This creature crews Vehicles as though its power were 2 greater."

Crew 3

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.)

Flying

When Sandstone Oracle enters the battlefield, choose an opponent. If that player has more cards in hand than you, draw cards equal to the difference.

{1}, Sacrifice a Scarecrow: Draw a card.

{4}, {T}: Return target artifact creature card from your graveyard to the battlefield.

{T}: Target player exiles a card from their graveyard.

{1}, Sacrifice Scrabbling Claws: Exile target card from a graveyard. Draw a card.

Each player exiles all artifact cards from their graveyard, then sacrifices all artifacts they control, then puts all cards they exiled this way onto the battlefield.

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.

{T}, Sacrifice an artifact with mana value X: Return target artifact card with mana value less than X from your graveyard to the battlefield. It gains haste until end of turn.

Whenever an artifact or enchantment is put into your graveyard from the battlefield, you gain 1 life.

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.)

{T}, Sacrifice an artifact: Search your library for a Construct card, reveal it, put it into your hand, then shuffle.

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

Flash

You may cast artifact spells as though they had flash.

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

When Spine of Ish Sah enters the battlefield, destroy target permanent.

When Spine of Ish Sah is put into a graveyard from the battlefield, return Spine of Ish Sah to its owner's hand.

{2}, {T}: Copy target triggered ability you control. You may choose new targets for the copy. (A triggered ability uses the words "when," "whenever," or "at.")

{3}, {T}: Put a charge counter on Titan Forge.

{T}, Remove three charge counters from Titan Forge: Create a 9/9 colorless Golem artifact creature token.

Transmogrifying Wand enters the battlefield with three charge counters on it.

{1}, {T}, Remove a charge counter from Transmogrifying Wand: Destroy target creature. Its controller creates a 2/4 white Ox creature token. Activate only as a sorcery.

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

Return target artifact card from your graveyard to the battlefield.

{2}: Untap target artifact creature.

{1}, {T}: Untap target artifact.

This spell costs {1} less to cast for each modified creature you control. (Equipment, Auras you control, and counters are modifications.)

Trample

Walking Skyscraper has hexproof as long as it's untapped. (It can't be the target of spells or abilities your opponents control.)