Talk:Cassiopeia/@comment-9156457-20141021033054/@comment-3148314-20141021101456

There's nothing wrong with it. That's exactly what it says in the description:

"Cassiopeia gains a stack of Aspect of the Serpent for each second that an enemy champion is poisoned."

It does not say " per second that each champion is poisoned". I thought so as well, until I actually read what the description says. I recommend you to read it in detail. ;)