Battlerager / Tempest

[Sokolsky]

I'm thinking about creating a battlerager / tempest character, and I've come up with this Barbarian 8 / Fighter 12 / Tempest 5 / Battlerager 5

Strength 16
Dexterity 16
Constitution 16
Intelligence 10
Wisdom 10
Charisma 6

(I don't know where the below white space is coming from )
[tr][th]Levels[/th][th]Class[/th][th]Feats and Abilities[/th][/tr] [tr][td]1[/td][td]Barbarian (1)[/td][td]Furious Charger, Whirlwind Frenzy, Power Attack[/td][/tr] [tr][td]2-5[/td][td]Fighter (4)[/td][td]Cleave, Two-Weapon Fighting, Dodge, Mobility, Dex 17[/td][/tr] [tr][td]6-10[/td][td]Battlerager (5)[/td][td]Improved Two-Weapon Fighting, Spring Attack, Str 18[/td][/tr] [tr][td]11-15[/td][td]Tempest (5)[/td][td]Oversized Two-Weapon Fighting, Monkey Grip, Str 19[/td][/tr] [tr][td]16-18[/td][td]Barbarian (4)[/td][td]Weapon Focus Greataxe, Str 20[/td][/tr] [tr][td]19-26[/td][td]Fighter (12)[/td][td]Weapon Specialization Greataxe, Epic Prowess, Two-Weapon Defense, Greater Weapon Focus, Improved Two-Weapon Defense, Weapon Mastery Slashing, Str 21, Str 22[/td][/tr] [tr][td]27-30[/td][td]Barbarian (8)[/td][td]Greater Weapon Specialization Greataxe, Greater Two-Weapon Defense[/td][/tr] Do you think this is viable? Do you have any improvements?