Yeah, the headhunter skin is pretty awesome. Has a futuristic look to it, which I like.
As for Ziggs, I'm not too sure. Seeing how you're playing Team Builder, you're essentially going in blind, so I'd pick just the standard Flash/Ignite or Flash/Ghost. Regardless if you have your W to be used as an escape, it's usually never as reliable as a flash. Just my opinion.
Actually, if you're up against an assassin, and you know it before-hand, you should take exhaust. Exhaust will ignore 40% damage you take while they're exhausted, as well as shredding 10 armor and MR.