You can get Angel Ray 10 from Zakum as well, however you need to do the prequests. Alternatively you can spend an enormous amount of mesos on one in the Free Market.
Do I get Angel Ray skill book from hard mode Hilla only?
Also I need the skill book so should I look for someone to solo Hilla for me until I get the book?
Will there be anybody to do that for me? :\
You can get Angel Ray 10 from Zakum as well, however you need to do the prequests. Alternatively you can spend an enormous amount of mesos on one in the Free Market.
You can also get it from the Root Abyss bosses.
Spoiler!
Angel Ray skill book is quite cheap at zakum!