Why is Cassiopeia rarely played?
I rarely ever see Cassiopeia in any of my matches so I decided to try her out and went 16/6 on my first game... From what I can tell she counters tanks, and anyone with dashes (I can't think of an exception). So, what is the main reason I don't see anyone playing her? I heard she is hard to play but I found her surprisingly easy.
Of course I had no idea how to use her w and ended up looking like an idiot every time I shot it backwards when the enemy engaged on me, but the main part of her damage is fairly simple. Land a q, spam e until they either use a mobility spells/summoner spells to get out of range, or use a cc ability to stop you from chasing them/kiting.. Use your ult and w when necessary.
She can melt tanks by kiting them, she can delete adcs by landing one good ultimate and spamming q and e. The only real weaknesses I found she has is assassins that can all-in her, she is immobile so vulnerable to ganks, or Galio.
This isn't a rant about how Cass is op. I just want someone to explain why in bronze/silver I don't see anyone playing her often even though she seems so strong. What is her main weakness?