Can you beat Pokemon Emerald with just a Slakoth?

Click this link https://boot.dev/?promo=JROSE11 and use my code JROSE11 to get 25% off your first payment for boot.dev. Slakoth attacks every other turn. That makes it very bad. Is this one we won't actually be able to do? Editing by ‪@DiamondAxeStudiosMusic‬ Music by ‪@makegamemusic‬