best thing is to try on non-nefarious shrines.
beware of the rarity of the emerald prefix, too! similarly, beware not to leave them on the ground, as their preciousness is valuable to any serious rare-item collector...
beware too of the level-50 goal: it might be more motivating to achieve three levels 40 than to achieve a single level 46. the latter level took me ages to achieve, and to look back at it i would have stopped way before that. but then, i think 46 is a cool number. should have stopped at 39, though./
anyone else putting their goals on cool numbers? or is it just one of my own weird trips?
edit: the "gold" prefix might be overrated, too. because, i think dexterity to be more valuable than to-hit, overall.