What is the easiest way to beat the Pokemon league in Pokemon LeafGreen?
Just battle weaker but still strongish Pokemon until you are strong enough
P.S. save before trying Pokemon league until you eventually win
It is located in Mt. Ember on Island One after you beat the Pokemon league. The cave that the rockets were blocking before is open for exploration after talking to Celio about the ruby and sapphire. After you get both, you can trade Pokemon Firered and Leafgreen to Ruby,Sapphire,Emerald,Colossuem and XD.