How do I make Asura from Asura's Wrath in 5e?

[Aleister VII]

As the title says I want to emulate Asura from the videogame Asura's Wrath in D&D 5E but I have no idea of how to make him class-wise x.x

I'll make a list of things that I want or consider that Asura needs:

•Unarmed attacks (Monk?)

•Unarmored defense (Monk? Barbarian?)

•Muscles (Barbarian? fighter?)

•Angry/furious (Barbarian?)

•Multiple attacks (Monk? Fighter?)

•Capable of taking a lot of damage (Barbarian?)

•Powerful as hell (level 20!)

•Mechanical body (Warforged?)

•Former general (Soldier background?)

•Extra arms (No idea!)

•Transformations (Paladin oaths capstones?)

So... all of this points to a barbarian/Monk Warforged with the soldier background..? not sure about it x.x

What build will you make with this?

[Dungeon-noob]

Barb. All of it. He's almost an textbook example for the class. Remember, by far his greatest strength is his unyielding rage. If there is anything more barby, i don't know it. You can't perfectly recreate him because no transformations, ranged punches, self resurrection, or unarmed being as viable, but Asura is a Barbarian through and through.