Ayeee welcome to Club, EE bro/sis!
Mind you, through the history of Lineage, EE has often been 'honorary profession', being the middle ground between extra heal-y BP and more buff-y SE.
It's no different here - there's no way talking people into taking you in their party instead of SE who can give them vamp/emp/etc. alongside doing what you do.
As Rizocki pointed out, EE's place here is basically exclusively in CPs for the PRing.
I already mentioned it times before, EE could use some love here to make them a little bit more useful outside of PRing, but unfortunately people here are strictly against any custom changes, unless it's convenient for them. Perhaps one day... Until then, stay strong ✊