Rengar pounce issue.
To put it bluntly, every time you pounce on a champion you stand there like a numpty taking potshots or getting chain ccd to high hell. If I click on someone, I expect Rengar to follow up with his usual auto attack routine without me having to spam Q or something to get him moving.
It takes me about one second to actually get myself orientated again after my enemy has moved away from me, may seem like a short time but in LoL it's a long time for a recovery.