Confused about prefix/suffix on items

Hello, I just stumbled upon possibly the best sword today. However, it was horribly flawed....

15-22dmg, 14%dmg added always, swordmanship+1(15%), dbl adrenaline (6%).....however, there was a -1 health regen....I was wondering how this could be, as there was no vampiric mod on the sword...are there just prefixes and suffixes that we don't know about yet? could this be the side effect of the 14%dmg added constantly? (have an axe that adds 14%dmg constantly but doesn't have -1 regen)...I'm confused

most of the stronger weapons have such bonuses and I'm sure they're limited on name size anyways

and vampiric means you suck blood from someone else, thats sucking from you and going to noone

No the thing I was confused about was that the sword didn't have a vampiric mod on it yet had a health regen -1

I'm pretty sure it's because some of the higher level upgrades have negative effects to the user. For example, most of the Major and Superior Runes for all professions have - Health associated with them. It's the price one must pay for superior skills.

I may be wrong, but I believe the same is possible with weapons, as you are seeing on your sword with the -1 to your Health Regen. That's not to your enemies, it's to you.