@Riot, Missing Champions in the new Blood Moon Game Mode

Okay so the new gamemode is cool and all but the list of allowed champions seems short a couple: Ahri Akali Camille Diana Ekko Elise Evelynn Fizz Kassadin Katarina Kennen Kha'Zix Leblanc Lee Sin Pantheon Rengar Shaco Talon Yasuo Zed All Assassins, and that's cool, but there's no Master Yi/Fiora/Riven in sight... These champions are officially labeled as Assassins (Slayers now) but they aren't available? Yet somehow Kennen who is a Mage/Marksman is playable..same with Elise who is Mage/Fighter etc... Again, here is your official list of champions organized by their appropriate subclass: http://boards.na.leagueoflegends.com/en/c/developer-corner/3A5uuBw7-champion-subclass-list and lookie, lookie...Yasuo is there...yet, he is under Skirmisher with Master Yi, Riven and Fiora?

Riot, please look at this post and reconsider your list of available champions to play in this new gamemode. I want to play my main, but he has been abandoned for questionable reasons. Thank You.