It's general knowledge that Mei's wall is used when Reinhardt's shield has or is about to drop however keep inmind how many seconds are left on the clock. In the following clip we see a perfectly time'd wall placement stopping an Ana boosted Reinhardt from doing work. Sorry in advance for the shitty quality. I did an obs recording off the facebook stream feature which mei or mei not have a high quality version of this for a while but this is something to note for someone who's picking up Mei this season. Game level high plat low diamond.