So apparently Sett is considered a support now according to Riot's official champion select UI. Is this actually a thing? Because all I can see are bad MOBAFire guides on this :
Blitzcrank Build Guide : Blitzcrank The Robocop Of LoL Season 9 :: League of Legends Strategy Builds
Blitzcrank | League of Legends Wiki | Fandom
Champion.gg - Blitzcrank Support Stats, Guides, Builds, Runes, Masteries and Counters
Blitzcrank Guide :: League of Legends Blitzcrank Strategy Build Guide on MOBAFire
2020) - SUPPORT BLITZCRANK GUIDE - League of Legends - YouTube
League of Legends for beginners: League of Legends: Blitzcrank Guide Inspired By Doublelift
Blitzcrank Guide :: League of Legends Blitzcrank Strategy Build Guide on MOBAFire
Blitzcrank Guide | League of Legends Wild Rift - zilliongamer
League of Legends: Senna Support Guide – Ten15AM
The Best Wild Rift Blitzcrank Build Guide, a Champion With a Deadly Grab! | Dunia Games
Blitzcrank Guide :: League of Legends Blitzcrank Strategy Build Guide on MOBAFire