Could Shyvana Work as Hybrid AD/AP?

Does anyone remember the Guinsoo's build on Shyvana? I don't know how well it scales but her W E and R all deal magic damage. If one was to build, lets say I was to build one of or all three items; Wit's end, Guinsoo's Rageblade and Nashors Tooth, it maxes out Shyvana's attack speed (with the attack speed runes and after guinsoos stacks) and gives her on hit magic damage. The damage feels nice when I play it in practice tool, but I'm not sure how this stuff works - so if someone could give me an explanation as to why it would or wouldnt work, or even a full build if it did.

I didnt build my junlge item when trying this out but if I built Bloodrazor AD/AP boots and frozen mallet, would that be a decent build?