This guild page supports your finding. According to their first/last kill date, the information is from late 2001/early 2002. That would put any change past luclin.
"AE - 250dd lifetap "Your life force drains away", 40% slow and 20hp dot with an unknown yet very long duration. Checks to MR.
Spell name - Ancient Breath"
http://www.silentredemption.org/mobinfo.cgi?mid=41