Foundry Inspector

Artifact spells you cast cost {1} less to cast.

Self-Assembler

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

Exile target artifact or creature. Its controller creates a 4/4 blue and red Elemental creature token.

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