is at a strange point at the moment. (i have lvl 6 mastery on him)
unless you lane opponent somehow gets a crazy advantage by either counterpicking you,killing you early , or getting fed by roaming o u cant fight them and push lane, or you just flat out camped all game, or your other lanes somehow do so bad they manage to lose first turret before you take one (and they would have to do REALLY bad for this to happen)
you are almost guaranteed first tower blood as a ziggs. especially if your jungler gives you blue
after that first tower kill you should have a gold lead an an item up on your opponent
ziggs really isn't that strong even he is even on gold.. but the fact that you can almost always get a guaranteed 650 gold lead just from having your passive and your W. is what makes him at last somewhat viable.
becuase ziggs is a absolute monster at splitpushing, you let him get near a tower for 5 or so seconds after the 20 or so min mark and its gone.
but at the same time.. his escape is REALLY unreliable unless your team can back you up