He shows some examples in this instagram video (link at the bottom) towards the end of these synth "rawrs" he made with Operator. I think he messed with the pitch envelope for sure, but also (possibly) automated the distortion. It sounds like the distortion increases as the attack increases in amplitude. He only uses Ableton stock plugins/effects & instruments.
Instagram video: https://www.instagram.com/p/BamNu1AD3qh/
He uses them in a lot of his beats, but here's one example: