Wow! Thank you all for offering insight and ideas. I'm learning lots.
Proc monster isn't only damage, could also be soft controls, or accuracy, endurance, etc. The damage is necessary if I need to solo due to lack of teaming. Also, I love scourge. It's fun to watch foes melt.
I thought Nature would be good due to Ice, Nature and TA being the top 3 sought after for those iTrials.
On live I had a bots/ta that was ridiculously fun. TA is amazing and I am enjoying seeing all the love for it.
I have a Water/Fire blaster built specifically for AE farms from Psycop (spelling) and it's crazy good for that specific scenario.
I haven't taken Marine too far yet and will give your ideas above consideration.
Really appreciate all the feedback and exchange of thoughtful ideas. Thank you very much.