Oh, you meant Mirrodin, Darksteel, and Fifth Dawn. That block was actually okay in terms of artifact & artifact support. My Affinity deck was built with nothing but cards from that block (it had all Artifact Lands, no Basic), and it was pretty good.
So far, Scars has actually been a disappointment to me in regards to artifacts and artifact support. Like I said in my last post, there's not enough Myr support for my deck at present.
I hope they reprint Tezzeret in the future. Type II Artifacts need Planeswalker support.