Noctus: You should notice the amount it increases auras just by taking tier3 of this enhancement and then looking at your saves and AC. I'm assuming it increases your these auras by one point, stacking with the AC, Fear, and Save aura enhancement lines of course.
Also I had a question about tier1 of Defender of Siberys, it says it increases your AC when blocking with a shield, but when I took it I noticed my blocking DR went up a few points. Is this a typo? Does tier1 increase your AC or DR or both when blocking with a shield? Anyone know? And one more, does the dodge bonus from the tier2 stance stack with the Chattering Ring or any other +3 dodge bonus?