Overall a most excellant product for magic users. It is geared towards a specific mythos and how that genre treats magic users but all in all a great sourcebook for classes dedicated to arcane magic.
LIKED: The prestige classes were well thought out and serve to give distinction to a given magic user.
DISLIKED: No reference to where the one mechanic comes from so a GM wanting to use the material for other fantasy games has little recourse in figuring out how to adapt these feats to play something other than the world in which it is supposedly situated.
QUALITY: Very Good
[4 of 5 Stars!]
As mentioned by Mr. Schell, the OGL Barbarian product line is primarily intended for use with a specific OGL fantasy ruleset. Unfortunately, the nature of the OGL does not allow us to advertise or state in our products what this ruleset is without the other company's permission (which they don't give because it is a licensed product.) This is why we can't mention anything about the mechanic's origins or state something to the affect of "For Use with GAME X." Our apologies for any inconvenience, but it's unavoidable without skirting the edges of copyright and trademark infringement.