Uncommon Mastery Books

Well, I've been trying to get a Paralyze 20 book for a while, without success. Same with Paralyze 30. Both books drop very rarely from crappy mobs.

Werewolves have a very good map for them. I was hunting there and there is a platform where you can meteor 3 platforms at the same time (with my non-resetted lvl 21 meteor it's one time per cycle) and it's generally good with 1hitting big bang and my lvl 17 paralyze.