what makes you say the things that you say kerolynne?
edit: actually a 61+ charisma buff would be a pretty good solution to this issue, all things considered. It doesn't really make sense for the charisma buff line to be completely tied down to the talisman/potg line. I suppose there might be a balance issue with respect to casters having too much charisma or too much mana regen if they were able to have both potg AND a charisma buff, but that all seems kind of weird. But hey, we all love the 70 charisma on focus, ngl, please don't change that on account of any of the dumb things I've said here today.
One way or another though, my point is that, contrary to kero's baseless claims, the group versions of level 50-60 shaman stat buffs are always higher level and give the same amount of stat. There are no trade offs between single target and group versions of buffs. I cannot think of any cases where such a trade off exists for any class actually, although I only really play a shaman.
The charisma buff bucks this trend by having the single target spell at a higher level, but giving less charisma than the group version. To bring this in to accord with the rest of the spells, and to make conscientious caster-friendly shamans happy, I think that the 58 spell should be made in to UR, a single target +55 cha buff. The 59 spell should be then made in to a group buff, Talisman of the Serpent, giving +55 cha. Granted, a different interpretation of this situation would be that the 58 spell be made single target and kept at +50 cha, and the 59 spell be made a group version that gives +50 cha as well. I guess I might have been shooting myself in the foot with this thread then, but I still think my interpretation makes some sense.