A mentor told me this really strange equation once: if you take rainbow and eye together, you'll get far less eyes and crystals. Supposedly, another mentor told him that. Now, I find that pretty suspicious. I've known mentors to be wrong, and taught a few about game mechanics before. But...
I don't see any way to know about that unless you're privy to some secret knowledge about the insides of game code. there's nothing in the eye of truth description to suggest it messes with rainbow power, and vice versa...
So, I'd like some official confirmation/denial about this. Prefferably from an admin. Because if this is true, then it's kind of a jerk move to make life harder for no apparent reason.
It sounds like some mentor just had a bad rainy and came to this conclusion themselves, but since now other mentors are saying it like it was a fact, I think it's worth it to get this cleared up.
You do not quit playing computer games because youre old, you get old because you quit playing.