When Blood Fountain enters the battlefield, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") {3}{B}, {T}, Sacrifice Blood Fountain: Return up to two target creature cards from your graveyard to your hand.

When Cogworker's Puzzleknot enters the battlefield, create a 1/1 colorless Servo artifact creature token. {1}{W}, Sacrifice Cogworker's Puzzleknot: Create a 1/1 colorless Servo artifact creature token.

Court Homunculus gets +1/+1 as long as you control another artifact.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Fen Hauler can't be blocked by artifact creatures.

Flying When Glint Hawk enters the battlefield, sacrifice it unless you return an artifact you control to its owner's hand.

When Greedy Freebooter dies, scry 1 and create a Treasure token. (To scry 1, look at the top card of your library. You may put that card on the bottom. A Treasure token is an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Lifelink Whenever another artifact enters the battlefield under your control, Mandible Justiciar gets +1/+1 until end of turn.

Lifelink Mold Harvest — {1}, Sacrifice another creature or an artifact: Put a +1/+1 counter on Mold Folk.

{T}: Add {W}.

Goldmire Bridge enters the battlefield tapped. Indestructible {T}: Add {W} or {B}.

({T}: Add {W}.)

({T}: Add {B}.)

Destroy target nonlegendary creature.

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Fen Hauler can't be blocked by artifact creatures.

Lifelink Whenever another artifact enters the battlefield under your control, Mandible Justiciar gets +1/+1 until end of turn.

{T}: Target player exiles a card from their graveyard. {1}, Exile Relic of Progenitus: Exile all graveyards. Draw a card.