the build is awesome but wouldnt it be better if you remove the boots and get another phantom dancer (in late game that is)

As said before, this build definately needs some tankyness. You shouldnt consider shyvana as an all out champion wiht ulti that everybody hates. No. You should think of her as a champion who can turn out a teamfight with element of surprise A LOT. But while being an element of surprise champion, she is also required to be able to take some hits. This build does not provide any, and soforth will fail. This build would work alot better if it had Banshees / GA / QSS / FM. Those items are very helpful, and I'd say to have 2-3 of them. It is situational though.

I'd recommend you update this guide before the voting is enabled, or you will be getting a lot of thumbs down for being so basic. Really, anything is better than nothing.

I double that

I get what you're trying to d here, but I don' think Shyvana is an all out Ad-carry like tryndamere or xin. Even if you are doing a tone of damage, you'll instantly die before you could use all your abilities. Maybe in 1v1 you might win, but in team fights, I don't you'll last very long, probably one kill at most before dying.

Maybe just adding a few survival items might help?

you have no tankyness, you will die very fast in team fights as you are a melee champ