New Magic School idea: Transmutation

[Sheap]

Most of the value of blesses is for recruitable non-commander troops. I say they might as well be permanent as any old cheap priest can bless, and few people will use sacred troops without priest(s) along to turn the bless on.

Anyway, the point of my original argument is just what you said. Very few troops can have blesses cast on them, which (tries to) balance the otherwise very good strength of the blessed troops.