Fiora cannot parry Renekton w

Theres no reason i shouldn't be able to stun him when he can stun me. I have proof of the bug and it really hurts the matchup in general

Edit: it seems that she cannot parry any auto attack based stuns

Proof of not being able to stun renekton W: http://plays.tv/video/58c272bc6a4a367120/parry-not-working-against-renekton-w