Here are the 2 main reasons that act together to make 1 hell of a broken KU
Early Game: KU can kill minions so well with his bola bleed damage that he can push the enemy team back so they can’t destroy the sentry (at least not the last one). Also focusing minions gets KU a lot of exp so he can get to lvl 9 faster than everyone else.
Late Game (lvl 9+): After KU lvls quickly from focusing minions then KU is now ready to go on a killing spree! KU starts stunning multiple people while everyone on his team focus fires/chain stuns the stunned enemy’s or KU can kill them alone if they are squishies or at the very least protect himself from dying. This happens repeatedly till the non-KU team gets team-wiped or enough players die that the non-KU team needs to fall back and the KU’s team pushes until they win.
Evidence: This is the game I just realized why KU is broken after I asked Bark about it when it ended. So as you can see early game he was staying back and killing minions with a total of 62 minion kills, and also stayed back so he only got 4 kills but he only had 1 death so for most of the game he was spamming that Bola so he could continue to make sure our minions were dead.
Then once he got to lvl 9 way before anyone else did, then they started to massacre us and killed both sentries.
Also you can see his total damage dealt is way higher than even ISIC’s! Which shows how well KU can wave clear.
Note: KU can be the main healer if he takes the Vigilance Protocol helix skill at lvl 2