[{quoted}](name=Wards Bot,realm=EUW,application-id=RaE1aOE7,discussion-id=pejNJr7c,comment-id=00000000,timestamp=2019-11-10T02:24:04.091+0000)
The problem with the Olaf comp is the addition of Poison prevents burst damage. Mundo is a Berserker, so you only have to inject one Glacial and two Poison to reach permanent crowd control---that's not a lot for the ability to shut down the entire enemy team.
Even a Shadow composition (one of the most burst-heavy compositions) will seriously struggle to kill the Olaf because Singed just runs down the team and spreads the mana increase cost on everyone. And it's becoming very apparent how high the power level of this comp is, as I'm starting to see it in my almost every game. You have to be way ahead of the Olaf comp to overwhelm it as the moment Olaf pops off, he can solo 3-4 carries.
I see a lot of similarity to season Set 1's pre-nerf Assassin---it's just too easy to make for something so unbelievably strong. Light Zed is way, way harder to assemble since Light requires a lot of specific pieces and many of them are blatantly weak until you assemble your synergies. And I'm reaching the same point where in my games I'm like, "Ugh, another Olaf comp took the game."
That's an 8 piece comp and Shadow should already be well invested into something like Mages, Berserkers, Blademasters or Summoners by that point. Poison also requires really contested units, Twitch and Singed are in high demand. If someone building 6 Bersekers is just allowed to take one while having Mundo as well then that tells me people just didn't put priority on Predators, Rangers, or Poison in general.
Also I don't know why its fine for you to assume that the Olaf comp will have Poison + Singed but it can't be assumed that there's other completed comps with major 5 cost. Does no one else have a Lux that fits their comp? Does no one else use Zed in Assassins/Summoners/Light? Also if you're running a Mage focused Shadow comp you should have Ocean as well as access to tears and the ability to draft 2 Rangers. I really fail to see just how poison on its own prevents you from at least being able to have a double Veigar ult or Malz bugs on the board, sure it dramatically reduces how many casts you get but you should be starting fights with kills. Olaf has to spend like 3-6s on someone to kill them.