a crypt mummy  

In South Ro?
I used to camp the AC for the JBoot quest. I have so many Ring of the Ancient's that my characters, including alts, wear them as a joke. (Would just use the Druid port back to SRo or the LDoN camp to check it periodically) Anyhow, I've seen these guys everywhere! They're KOS, apparently despite your level. I've gotten used to dodging them as to not waste the time to knock them over. I even found a use for the Druid bear pet (a level 55-ish spell that most Druids tend to ignore, for good reason) as something to kill these things with while passing through. Them and the darn skeletons.

Anyhows, I guess you had bad luck. =/ They seem to be pretty common, to me.

If it helps, anyone else doing the same quest, I would mass train zone and cast a high-end AoE to slaughter it (PB AoE have no practical target limit). The general idea was that the AC may have a placeholder (which I don't know for sure). Whatever the case may be, while doing this, I did have high occurances of this particular MOB, along with many others, of course. Perhaps, if you need the Crypt Mummy to spawn, you should just kill everything in sight?

Not only that!! They get all there vital organs pulled out too :( Poor poor mummy

i have been fortunate enough to see them drop onyxes, but as a Dwarven Cleric, i hardly find a need for them, other than pocket money.

Draconar
Dwarven Cleric of 13 seasons
Cazic-Thule server

PS, at level 12 i was able to solo them(im barely even twinked)

Rabies is the nasty side effect of going toe to toe with the Mummy, spell casters with pets can avoid it, but warriors will need to pack a few bandages and be prepared to spend sopme serious time sitting around because it takes ages to shrug off.

Trolls only suffer a penalty to their natural regeneration and don't actually lose any hitpoints.(generally if they have a high enough stamina)

Aside from that, try to get above them, I noticed a distinct drop in the number of hits I was taking when I was up the hill a bit, Might just be me though.