I'd recommend adding:
Stone Pillar at Bethel - critical artifact for Genesis offense (gives you the ability to grab NJ or AotL or many other cards from deck)
Captured Ark - great artifact for getting rid of arts that mess you up (G-Cow, A-Pole, CoM, HHI, UW, etc.)
8th Hero - maybe Dan, maybe Ira, maybe Tribal Elder (really depends on your style)
Numerous as the Stars - great GE that allows you to pull out your guys faster, beat lone immune guys (potw, nero), or BTN guys (KoT, etc.)
I'm not sure what to take out other than:
I Am Truth - It's just not worth a spot since it only helps 1 card (RTC)
Jubilee - you can already get heroes back with CoF and GEs back with Asher