For some reason, my Kadabra never learned Confusion, and I want to teach it Psybeam before challenging kahuna Hala, but the only way is by level up. Where is the best grinding spot?
You can also use a Butterfree with Psybeam, a Cutiefly with Fairywind, or just start out with Popplio. But, since you already have Kadabra, I'd say the best place to grind in Mele Mele is the Mele Mele Meadow.