mostly everything here looks good! But a few things worries me or have questions about.
blindfire and frostbolt will stun for how long?
barbarian nature, glad to see it last longer and less coldown!
power of relaxation and shadow sphere drains how much? And shouldn't power of relaxation maybe be changed to: If hp is 95%-90% then the bonus is lost. Since you have made reflect rune a thing. Otherwise I don't see this being used at all.
forest song range is now 2. We all in pvp cave appreciate that!
counterattack is back I see, tho not as op (over powered) as last time but interesting.
other then that. Great work!