This is pretty much my end result from playing around with Fi for 6-10.
No sticker, better luck next week ; w;
No need to explain stage 6, what you see is self-explanatory I'd say.
Stage 7: Jump Slide Shaker is better than ground Slide Shaker since you actually move in the air. Volg + Peak Up Throw + Slide End should be a guaranteed kill on DF Angel.
Stage 8: I put Bloody Sarabande on my palette to deal with all 3 bosses simultaneously sometimes, works out rather well if you position yourself well. I do start off trying eliminate the monkey and rockbears first, generally.
Stage 9: Straight Charge back and forth works rather well. Not as risky as I made it look here, kind of messed up there.
Stage 10: I use Nifta + Tornado Dance to take care of the council first. I just Illusion Rave spam during spawn animations of Anga + PD to conserve PP and then proceed to make use of DS Wind Gear Parrying and Acro Effect afterwards. For Dio 2 well positioned Acro Effects and a bunch of Illusion Rave afterwards can take it down with no problems. Of course, I mess up quite a bit on both Dio and PD.