[GAMEPLAY] Cassiopeia Invisible Spells

Hi, As it says in the title, I was just playing a game against a Cassiopeia (In ARAM), and no one could see her Noxious Blast(Q) or her Miasma(W). Moreover, she could use all her spells and auto attack through our Yasuos Wind Shield, which was used to their advantage and ruining the game. The Desperado Cassiopeia skin was being used.