Parad - Cool. Pretty crazy in limited, where your opponent may not have any god artifacts. Also functions as a tutor for your own artifacts. Would be one of the premier cards of the set.
Confused - I don't like how this makes two different but similar tokens. Equipment tokens also seem difficult to manage for anybody using dice as tokens.
Ace - This works. Absolutely. Artifacts being mostly metal though, it's a little weird that he seems to burn them for warmth. Maybe he could be repairing things with scrap instead?
Storyteller - I don't like coloured artifacts for this set.
Knifethrower - Cool ability, and actually seems balanced in limited, where three artifacts would be a big deal. Could just as easily destroy the creature instead of exiling. Maybe this guy's a bomber, raining down metal shards on the enemy? The fact that he only effects attacking and blocking creatures perhaps means he's on patrol?
Cato - I like it, but it really needs to be a sorcery.
Shazzeh - Usable with all artifacts, but best with relics. Potential lategame wincon. I like this.
Steinhauser - I love giving abilities to relics, but this seems to good in limited.
Vulshok Morningstar wins games. Multiple Morningstars, even ones dependent on your guy sticking around, is back-breaking.
Altimis - That's cool. The flavour encompasses every aspect of the card. Not bad but sure to wheel to the player who's grabbing all the artifacts. Weird that this works as direct damage, when it could just target creatures in combat. I wish it didn't sacrifice the artifacts though, mostly for limited archetype purposes. Would have been enough to secure my vote though.
thatmarkguy - Not bad, but I would probably just end up using this on offense most of the time.
Fakeartist - Kind of wish that this only applied to your artifacts, but otherwise it's very nice.
I vote Knifethrower