Good to see you again, cra!
I used almost the same setup; I switched out Thor's Arc for...Motaht's Amity? The stealth MC. (I need to get onto describing the MCs...)
But TA is my second choice.
I felt that of the four, only Niltor's Resonance and Nive's Anger were worth using the 2-star variant of the spell. You only need small bursts of Stealth, and I prefer not wasting MP on a high level Ceno MC.
We should play together sometime, if you've got Gold. Some HC:U, too, if you still play that.
Edit: Corrected the name of the Nive MC I referenced.