1:
Frenzy – Rage and Battle roar, Zealot is a C5 skill if I am right.
2:
No idea about proper rules on this matters, depend if that will stay in town for buff or if you gonna use it to explain a zone like this example:
“Let have archer to make the raid run will others kill it ”
3:
If you know what you are doing definitly, Saddly.
With my own char full buffed I can kill almost all.
I tell Almost cause it require quite much time eheh