>>43377485Insomnia, Anti Sleep berries, Infiltrate, you name it.
I think crits also bypass defense but I forget, so a high crit ratio move could help too.
Also fun fact
Snatch steals substitutes last I checked.Semdemon covers a good amount of what you'd need there and can soft boil himself to keep going. Or anonymoose if you just want infiltrate and thief+snatch potential.