I love farming zerker nodes like the Crystal drop node in Agartha just because it means I can farm bond points with my servants close to a bond level. I just got 3 quartz from getting someone to bond 9 and that is great.
Congrats!Surprisingly managed to complete all of Babylon and Solomon in two days on natural AP, I didn't think it would be that fast. Bond 10 CE Herc soloed all the fights in Solomon.