Yes, but just because you turn into 'Seti' doesn't mean you get his powers.
They come from having the Binding done on him when he was a baby, and only someone who's also had the same Binding can use them, like turning into Naruto wouldn't give you access to the Nine-Tailed Fox's chakra- basically, they're from the 'desert spirit' and not coded into his DNA, so he'd just turn into a human version of Seti.
And annoy him even more.
NINJAEDIT: Yeah, sure... Feel free. Btw, it's nighttime for me here. I might leave quite soon, so don't post three pages while I'm having my kip. Also, I gotta work on an essay tomorrow- I doubt I will, though.