Understandably, this was a difficult challenge to do with stall, but my best team with greninja is more of a semistall, with greninja actually being able to clean up some games very quickly, and by taking some inspiration from cee and replacing dozo with a calm mind (or rather, take heart) sweeper I was able to make the challenge doable, while still being a legitimate semistall team. And it really is a legitimate team. While doing the challenge, not actually trying to ladder, I at one point ended up as high as 1692 elo. The other thing that made the challenge hard was people usually forfeiting when I get in a dominant position in the first few turns, which meant most of my potential taken by storm games never got a chance. Thank you to Spartan Wasp for kindly not forfeiting.
https://replay.pokemonshowdown.com/gen9monotype-2484706029
Status: confirmed