Velk's Lab - Slow not working.
 

60 Shaman using Turgurs - so far, nothing in the zone (spiders) entrance mobs, etc are effected by slow. seems to land, no "unslowable" message just not altering the attack rate. will test further with other types of slow

Tested this further, all the spiders have a default attack of ~4 seconds. When Turgurs (75% slow) http://wiki.project1999.com/Turgur's_Insects is added no message other than the standard XX Yawns is given, and the attack rate stays ~4 seconds for them. It should slow to something ~7 seconds. If more information is needed I can try to add to this.