Camate, this is VERY encouraging news. I am frankly stunned to even see a mention of a possibly interesting spell addition these days on the board from the reps. When I saw it on the dev tracker list I got very warm inside, and it has ALMOST washed the horrible taste of Gravity II from my mouth.

I haven't played in months but I'd come back for a couple months to try this spell in every possible event. That is, if it goes to RDM or SCH. I wouldn't be mad if SMN got it, but I wouldn't really care about it either. I'd be infuriated if it went to WHM. Infuriated. Mad. Horrified. That kitten-punching dude would have a partner.

As far as the implementation, I'd be disappointed if it turned into a cycle spell. I see this happening if it is a long lasting buff with a random firing chance, like Blink, and didn't reflect friendly spells. You can keep the immunity to friendly spells, but as another poster mentioned, I'd like to see it work like stun, with a 100% activation rate, instant-cast, long recast and very short duration. Rather than maintaining another cycle on RDM, I'd like it to require paying close attention and be coordinated with stuns. I'll second the nomination for a Runic ability for RDM too with a similar behavior.

Also, through gear, merits or whatever, I'd like to see an effect from FFIX, where a reflected spell would be more powerful that the original when reflected back to the caster. This would give me some reason to really care about using Reflect rather than stun.

In the end I just want this to be a useful, worthwhile spell addition with interesting applications, and for it to go to a job that actually needs something now.