Pokémon USUM - How to Let Your Puppy Take Half a Million Damage and LIVE!

Good thing they're not making any more games in the series on 32-bit platforms, huh?
After a bunch of digging, I managed to find a few different setups that caused monstrous amounts of damage to "overflow" and wrap around back to comparatively small values. This latest such setup is the most striking of them all, both because of how quickly it's possible to get to the point of the battle, and because it doesn't rely on the newly discovered mechanic that led me to search for these things in the first place--indeed, a very similar setup should be possible (with the same result) going all the way back to generation 5. Plus you get to hear me talk for 15 minutes to provide background on this whole thing, in case you're into that for some strange reason.
Credits:
Battle originally played by myself and Eisenherz
Video ripped to PC by DaWoblefet
The various games in the Pokémon franchise are produced by Game Freak and published by Nintendo
This video contains the "Record Scratch" sound snippet made by Luffy from freesound.org, and licensed under CC-BY