How do you beat wigglytuff in explorers of time my hero is Bulbasaur and my partner chimchar Bulbasaur's moves are tackle razor leaf sleep powder and giga drain and chimchar's are all fire types?

you need to use a stun seed on wigglytuff at the start, kill everyone else, use sleep powder on wigglytuff, and keep using strong moves until wigglytuff is dead. its not as complicated when you are a mudkip that knows hail, blizzard, and endeavor.