{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

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

{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.

When Dutiful Replicator enters the battlefield, you may pay {1}. When you do, create a token that's a copy of target token you control not named Dutiful Replicator.

This spell costs {1} less to cast for each artifact you control. {5}{U}: Gearseeker Serpent can't be blocked this turn.

Gearsmith Prodigy gets +1/+0 as long as you control an artifact.

When Self-Assembler enters the battlefield, you may search your library for an Assembly-Worker creature card, reveal it, put it into your hand, then shuffle.

When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When Solemn Simulacrum dies, you may draw a card.

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

({T}: Add {U}.)

{T}: Add {C}. {1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land. {T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

{T}: Add {U}.