I didn't realise Drum Major GUR had an additional ability, (as noted by Zhuwa): it's an improved version of Vasariah. I should probably have visited more WGs .. certainly trying LAWs, (and possibly even EH), was primarily a waste of time. Almost no Jubilee Hostesses in EH .. spent ~34 of 41 keys thus far .. all for a single Jubilee. Probably should have found more keys .. possibly as level and Vit increase, more will appear.
And of course Celestial Oracle GUR has an additional ability as well .. This is very irritating, as spending more BP to hunt LAWs, has proven basically ineffective .. or even finding LAWs in the first place. This event still seems to have been a waste of time .. and of a great deal of it.