To begin with, as mentioned before Soul Skills at Tier 1 can't have two elements so make sure to change that.
As for the Fusion skill, it's doing too much. For one at Tier 3 it won't be reaching mach 3 speeds, it can't be that fast, it also isn't defined enough. 10% of what? Their HP? What does the dice mean to it? Not to mention the residual HP loss won't automatically hit, it'll have a chance of hitting however. Tier 3 attacks are a single element, that can have an effect tacked on to it, but you need to be specific about what it's actually doing and lower the chances of it hitting. If you want an AoE Slash attack with a percent chance to have them lose HP that's fine. Get back to me when you're done.
- Aya's Stats ~ Level 3 - Rank 4: