Talk:Poppy/@comment-14.198.98.130-20120427031954/@comment-4499980-20120427033836

No, Cataclysm, Crystallize and Pillar of Filth don't count as impassable terrain for Poppy's or Vayne's stuns. Refer to the ability details page for questions like this, you might find out more more mechanics you didn't know about. :)