So I have absolutely zero data to back this up, but I think Corrosive Salazzle might have some sauce if used properly and supported correctly in team building. Hear me out here, being able to force progress on literally any Corviknight set along with Heatran, Glowking and the Rarer Toxapex, as well as forcing Ghold out (or forcing it to tera) is genuinely nice. It also absorbs toxic spikes if you don't run a boots spinner, corv, or treads. It's definitely extremely niche, and also very poor otherwise, but I think there might be something there.