Sage would be a no. Your skellies are dispensable. Enhance their usefulness with HoW instead
Barb would be a no too, seeing as your primary curse aligns to dealing physical damage. Same reason you shouldn't choose Iron maiden as a primary curse
HoW- these spirits provides more benefits since it works by percentages. The higher the base, the higher it boosts
So the idea is to strengthen the strengths with percentage skills. Not to make up for weaknesses
I would rather get a necro with Amp damage, fanat, might, concent aura, and HoW that keeps on dying due to lack of protection
rather than a necro with Lower Resist, Conviction, Vigor, Redemption and Barb
wouldn't you agree?
maybe the question should have been, which spirit should I use in certain areas?
seeing as you can easily switch from one spirit to another
maybe you need a number cruncher here, who knows which areas have certain monsters that will be affected by each spirit the most
oh and take into consideration the volume of each side
if there are significantly more monsters than your zoo, then the Barb might be more benefitial since it is an area affecting skill
(1 skelly vs 3 frenzytaurs calls for a barb, as the skelly can only hit one of the 3 frenzytaurs. But 3 frenzytaurs can hit 1 skelly simultaneously)
if your force outnumbers the mob, then HoW definitely
(3 skellys vs 1 frenzytaur in this case. 3 HoW'd skellies hits 1 frenzytaur, but frenzytaur can only hit 1 of the non OS'd or SoB'd skellies)
take into account your Corpse Explosion though. It might change Spirit usage when it comes to killing speed
