This skill(or spell) would display the resists/vulns of the target(factoring in all current affects). It would be useful for mobs in changing your weapon or spells to hit their vulns, and useful for PCs for the same reasons. It would encourge the finding out of vulns/resists of races/mobs in game instead of through guess/check and the forums.
It could work for melees and give them an edge on identifying mobs..mages can id items. Or it could work for mages with their superior insight. Or it could work for specific classes that need a fun boost..like bards or zerks (obviously rename it)..or it could for cabals that specialize in killing strange beasts..aka watcher.
I see little room for overpowerment here as it could be potentially given to any class/race/cabal in some form or another, and if you put it as a high level skill, it couldn't be used to scout out mobs to fight certain qclass players.
