I initially had Chariot of Fire, but found that I was using my other arts so much I had a better chance of holding Brass Serpent in my hand than using CoF. On the other hand, I have used Brass Serpent in one game where I later regretted it.
I stopped using Falling Away a long time ago. Although the Law of Averages should even out its usage, I never seem to get any opportunities. Murphy trumps.
I've gone back and forth on Uzzah, mostly because I just know that I'll need the artifact I discard with him. (Suspicious of Murphy...)
'He is Risen' is one of a few cards I have in my alternate list. Most decks I build I keep cards that may or may not get added to the final product, but I keep them around just in case.
To be quite honest, when I started building this type of TGT deck I completely forgot about I Am Patience. In my earlier versions (pre-2007) of what I call EC-annhilation decks, I used I Am Patience. During 2007 and after I started drifting away from it. I'll have to consider how I would add it in.
Thanks for your comments!