"Let's take a fun poison mage and rework it into an Undodgeable Twin Fang Machine Gun"
Just because it is easier to rework an entire champion than to just ban the players who were clearly scripting with her.
It wasn't hard to separate Usual Cassios from Scripting Cassios aniway.
It's not like her Twin Fang didn't give it away since she would be casting it backwards without any animation whatsoever.
Don't get me wrong, it's not like the new Cassio isn't good after her buffs. It's just that she is not fun.
The champion feels nothing like her olderself.
e(twin fangs) Procs