I've been getting some conflicting info here. On a few posts it's stated that E. Marr idols are a viable way to skill up past 222. I checked the recipe on the site (and Alla's site) and it says idols use vials of distilled mana, yet all the posts say vials of clear mana. Since the difference is 14pp compared to 210pp, you can see why I'd like to clear it up.
