You can catch in a swarm in Lake Valor, or just migrate from Fire Red/Leaf Green.
Chat with our AI personalities
You can find one on Route 44.
in route 44 . you have to surf to a patch of grass .but you can catch it only in the day
Go to the route that takes you to Veilstone City and find a Lickatung. Then teach it rollout and there you go.
When Lickatung learns either Double Hit or Ancient Power, and you level it up with it knowing that move.
yo learn it rollout then level it up