Blue White Artifacts.
Ideally have Esoteric Duplicator + Exalted Sunborn in play. Sac artifact creatures to Ashnod's Altar; use 2 to pay Esoteric Duplicator's cost to have 2 copies come into play (due to Exalted Sunborn).

Artifact creatures will ideally have ETB or leaves play triggers to get extra benefit from sac + copy effects.

Lodestone Myr as a potential finisher (trample + pumpable)?

Greater Gargadon is there as a sac outlet for artifacts (it is worth it?).

Arcbound Reclaimer + Emry, Lurker of the Loch are there to get artifacts out of the graveyard. (Maybe add some mill effects to get things into GY rather than card draw??)