I just recently evod my 4/5 enlighten snowzilla and I'm not going to bring him up so I have 263 books just chilling in my warehouse. Not sure what to do with them first. I'm starving in hbs with only 200k and I'm working on my lava isle 3 team. I am also working on my GW defence team and my hbm team. I could get up vlad fo hbm (he is at lvl 170) to beat hbm s, I could get tree and PK up for lava, (they are at 160 9 stars), or I could get Michael up for GW defence, GW affence and lbf (he is at 141). Not sure what to start on and how many books I should sell for hbs. And suggestions? Also I'm 120k might in a guild that's top 500.
Working on your Lava team is a lot more important than HBM or GW defense, assuming you aren't already doing Lava.
Level your Lava team and sell books as necessary. Don't be shy about blowing all your books. If it gets you in a Lava team, it's worth it.