Grimoire is 99% based off PvE content. You can't say high Grimoire means anything for PvP skill because people with high grimoire are generally PvE Guru's. I'm not saying that people who are good at PvE can't be good at PvP I'm just saying FPS skill doesn't translate to Grimoire. I've seen many people who mainly PvP and they are really good but have 3500 Grimoire approximately.