I adjusted ratio of skills for balance. Thanks for your feedback!
-Buff-
Arts
- Head Splitter <-- Cast Speed, Knockback
- Blade Buster <-- Damage, Knockback
- Flash Slasher <-- Damage
- Berserker Edge <-- Damage
- Swallow Returns <-- Knockback, Cooldown
- Fatal Petals <-- Damage
Magics
- Mana Reflection <-- Damage, Cooldown
Swordforces
- Pioneer <-- Damage
- Surge <-- Damage
-Nerf-
Arts
- Head Splitter <-- Cooldown
- Jet Stream <-- Damage
- Skywalker <-- Knockback
Magics
- Mana Reflection <-- Cost
Swordforces
- Purge <-- Cost
- Vigor <-- Knockback
- Challenge <-- Knockback
- Reminiscence <-- Damage, Knockback