Monkey-God: Umbra Warcry Build.
Celestial Twin, aka your personal Aimbot, will greatly increase your damage. Throw a [Kuva Nukor], [Ignis Wraith], [Rubico Prime] or whatever weapon you prefer on him and watch him delete everything in sight. Status weapons synergize well with [Condition Overload], so keep that in mind.
Cloud Walker and Defy are great utility moves. These combined with high HP, armor, Adaptation, Arcane Grace/[Guardian], and [Wukong]'s passive make him nigh unkillable.
Replace Primal [Fury] with Warcry. Warcry provides a significant boost to melee speed and armor. Your Wukong, which was already unstoppable, will basically become the Monkey-God at this point.
Helios/[Deconstructor] with the Gladiator mods will further amplify melee damage.
Enjoy,
cjscott89