I've actually played a couple games (going 1-1) with it and made two changes.
One, I took out Holy Ground for Storehouse because I can't afford to discard my battle winners.
Two, I took out Deafening Spirit for Destructive Sin to help against The Garden Tomb since it's bi-colored. Unfortunately, I never drew Destructive Sin against Caleb and I was forced to put down 4 ECs who promptly got ET/AoC-ed...yeah that game didn't go so well.