Pick Nido Male, aim for Mudkip offset, get the Hasty one
Get Heart Scale on the beach
Rush for Meteor Falls
Get the Moon Stone, evolve into Nidoking
Continue up to Fallarbor
Buy 3 Heart Scales from mine shop and also 9 Super Repels
Teach EQ, Sludge Wave, Ice Beam and Tbolt to Nidoking