These Champions Need Updates
I like Urgot cause he's tanky, but he hasn't been viable as an adc for a long time. The thing that makes him the most out of date as an adc in my opinion is his ultimate. Instead of a switch, it should be a directional skillshot harpoon that ignores minions with a little less than thresh's pull range which suppresses and pulls a target towards urgot for 1 second, dealing (150->300->450 (+20% ad)) damage and lowing their armor by 10% (+1% per level) for 5 seconds. That way he'd still have something that draws someone into a tower but still be more tactical in group fights and ambushes and more easily compete with modern adcs, and if he misses his corrosive charge in a fight surrounded by minions, he'll still at least have a chance with that harpoon.
Second one is Shaco. At full build he can take down adcs and mages in 2-4 attacks, which with static shiv won't take very long. That doesn't necessarily make him the op since he has to sacrifice nearly all defense to do that. The thing that makes him so op is how he's able to escape after taking someone down. Finding someone invisible with no pink wards is hard enough, but finding someone who can go invisible AND TELEPORT AT THE SAME GOD DAMN TIME??????? That's completely overpowered. Being able to simultaneously jump over ridges to easily ambush and get away while simultaneously going invisible is too much. Like Evelynn, twitch and teemo, he should only have invisibility, no teleport, and maybe increase the cooldown on invisibility too, I've seen him barely escape after a long fight and chasing too many times with invisibility.
Then there's...Zac...Basically a bad version of Reksai. He has an ability to jump through walls which also knocks people airborn, though it takes longer, then he has the cc attack which does less damage and doesn't last as long. His ult is ok since it affects multiple champions at once, but not as fast as braum's ult nor as efficient as leona's. He needs to be redone in some way, either more efficient lockdown or more damage as a tank. I can't even remember the last of any match, ranked or unranked that I last saw him played.
