Champions with the "3-strike bonus"

Okay, for starters, I know the title may be a bit off. I'm not sure what to call it in just a few words. Basically, I'm talking about champions with some sort of passive or passive ability that gives them the ability to do 2 basic attacks/ability and the third basic attack/ability does bonus damage.

Here's some champions that have this passive: Gnar Vayne Diana Ekko (abilities also proc) Vi Aatrox (technically) Caitlyn (technically) Vel'Koz (abilities proc) Xin Zhao (through use of an ability) Braum (different start but has the same effect) Sona (works with casting abilities) And of course, the new Tahm Kench.

(I'm sure there's more champions than that, but that's all I had time to look up)

I'm not complaining, but really, Riot? I thought you were more creative than that :c