So I was playing a ranked game as adc, so I didn't see what was going on to cause the bug, but every time during team fights that the enemy Cass used her miasma, it was invisible. Invisible puddles everywhere on my screen. Idk if Riot's seen this yet, if it's known, or what. Just thought I'd share.
I've seen this before too, multiple times, and I'm trying to maintain a thread for this bug until someone at Riot notices it: http://boards.na.leagueoflegends.com/en/c/bug-report/1RmU2E4O-gameplay-invisible-cassiopeia-slow I'll add a link to your post from there ;)
I saw this too in an ARAM match just now. We probably could have won if we had been able to avoid the pools...
