I also have the highest rated Zoe, Ahri and Aurelion Sol guides on the site too if you guys wanted to learn these champions!
I have been waiting for her for a long time, since she was teased as the Yordle artillery mage (then changed to burst) and have been extremely excited for her! I've been constantly playing her on PBE learning as much as I can about her to make this guide, I hope you guys are excited as I am and hope this guide helps you! She has mostly skill-shots, but her abilities aren't overwhelming. With most champions released in League nowadays having extremely loaded kits and long ability descriptions (looking at you, Akshan, with your E having more text than Nasus' entire kit.), Vex gives us a kit which is not overly complicated, while also not being overly simple. Mages have had an extremely tough time in season 11, with no changes in sight until at least pre-season, so Vex is a breath of fresh air. With a huge increase of the amount of mobility in the game, with seemingly no answer to it, Vex has been a godsend for mage players. Vex is League's newest release, the first traditional control mage since Neeko 3 years ago, and the last yordle before her was Kled, 5 years ago, Vex brings something we've wanted in League for a long time.