I'm currently using a necromancer with a high distribution of skills on raise skeleton and skeleton mastery/summon resist.
To compliment this I have kept my henchman from Act II who has the Blessed aim aura, which all my skeletons obviously inherit.
Simple question: will my henchman work up to a new and more powerful aura like Fanaticism? Or will replacing my henchman in nightmare or hell maybe give him a more effective aura?