Welding Jar

Sacrifice Welding Jar: Regenerate target artifact.

Darksteel Forge

Artifacts you control have indestructible. (Effects that say "destroy" don't destroy them. Artifact creatures with indestructible can't be destroyed by damage.)

Mystic Forge

You may look at the top card of your library any time.
You may cast artifact spells and colorless spells from the top of your library.
{T}, Pay 1 life: Exile the top card of your library.

Universal Automaton

Changeling (This card is every creature type.)

Enraged Killbot

Despondent Killbot

Chief of the Foundry

Other artifact creatures you control get +1/+1.

Curious Killbot

Delighted Killbot

Wastes

Foundry Inspector

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