Reminder that Shyvana deals 6 On-Hits Under a Second
Or 6 On-Hits still within less than a second
With Sated Devourer's phantom pain passive; Auto > Q cancel > Auto for 6 or just Auto > Q cancel for 4
Sated has its own on-hit 50 magic damage BoTRK chunks away 8% current health as phys damage per hit Shyvana has 2 more on-hits inherent in her kit; some extra magic damage that scales with your Attack Damage (W), and %Max HP as Magic Damage (E).
Don't forget that in Dragon Form, Q has an AOE strike radius which will strike everyone in that radius with at least 3 on-hits, and that E also gains AOE
All in all, Shyvana procs on-hits 16 times on one target in the span of one Auto > Q, or 24 procs with one extra Auto (at highly increases attack-speed due to BotRK and Devour). Or, Shyvana can procs 9 on-hits instantly to anyone caught in AOE Q
If you want to get stupid you can even thrown in a Wits End
Remove Devourer