I don't even know why I stopped playing ziggs, the bastard if waaayyyy too much fun.
Lich bane works wonders on him.
A 300/400 HP fellag running far away? Don't have enough mana except for one spell? No problem. W, jump, basic attack, lich bane does it's magic, kill.
It's so much fun jumping over walls, bursting the hell out of every single enemy in a team fight with only one spell (Q, W, E and R).
I know, the enemies weren't all that... umm.. good, but still, ziggs will always be awesome.