
My first 1k combo - Teamfight Jinx Vi
I'm not great in the lab, but I found this interesting interaction with Vi where when you spam her S2 Super the extra lengthy animation desyncs from Jinx Laser Super and you can use it to basically double down twice in Teamfight fuse.
There's also a slightly shorter version that does about 900 that can be done from anywhere on the screen. Both are relatively easy to do with Teamfight even playing solo.