Talk:Riven/@comment-36067310-20181127172610/@comment-8506165-20181215201900

Mostly her combos. Riven has been balanced with her animation cancels in mind so if you try and play her with no grasp of how to do any of them you'd be better off just picking a different champion.

There's other things that contribute - she's entirely melee, tends to build full squish, etc. but those aren't unique to her, they just make her easier to punish when she's being played by someone who can't maximise her potential.