If you replace the metalworker and forge master with mystic forge/inventors fair/basalt monolith your deck could be really good and you could still play all the tutorable hate pieces. IMO 8 keys 8 monoliths is way more consistent than 4 keys 4 monoliths 4 metalworker 4 forgemaster because of cross synergy, haste, and avoiding removal.

Mystic forge is absolutely busted and gives you a good reason to stay away from non-artifact threats or cloud post, so the deck should have a niche.