Kalista and Sion

46.8% win rate but your analysis is also valid.

Riot Tangrams: Kalista is indeed broken. We just wanted to wait and see if people would find out that quick! We decided to make her e have a 5.0 ad ratio. And her q has a 4.0 ad ratio. We intend to nerf her in future patches.

Riot keeps her at an abysmal win rate because she is broken at a mechanical level. She's impossible to balance.

You played a game versus a bunch of bronze players wut....

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Is it just me or is Kalista still broken? My friend and I just won a 2v5 with a Kalista and Sion bot duo. Please. Balance Kalista.

Kalista has been driven into the ground repeatedly, she is possibly the most garbage champion in the game right now.

Just because an off case where you did something with her occured doesn't make her broken.

Kalista needs major buffs to ever be viable again, but Riot won't do that because they'd rather destroy her than just ban her from professional play.