I find it quite ironic that people decided that they wouldn't be pulling on Raiden Shogun/Ei's banner because she didn't look too interesting for them when the leaked images appeared (I think even) earlier than the Inazuma update, then we got the "booba sword" trailer and now her banner raked in the most money out of all the banners so far (on CN server but still, I think it did very well on the rest as well).