Amhazair is right: for age effects, look in the strat index. In fact, for a lot of things, look in the strat index
I've learned HUGE amount of dom3 knowledge on this forum since almost two years now.
For auras, I've never see or read anything of that.
And yes, high death magic level add fear
, as fire add command etc.
By the way, welcome aboard, Tifone.
Be ready to become a nolife ... or a God, it depend ...