This is my first deck post and I guess I'm just looking for a bit of a review or card suggestions.
It's pretty dry cut; Just Stall and Ramp (slowly) into Iona or Beats via Akroma, Yosei, BSA or some other weenie.
As far as artifact mana accel goes, it's hard to beat Gilded Lotus, especially because it can provide the triple white necessary for Iona. I also like Thran Dynamo and Everflowing Chalice. I notice most of your sweepers don't hit artifacts, so anything to ramp you into an early Iona to lock out problem opponents is good.