Volcano

Alright, Phoebe, way to go!

Start the round off with Taunt to shut down that oversized chicken's defenses, and then use a Thunderbolt to roast that bird! End with a Future Sight.

If it tries to use a Super Effective move, use Double Team. If it tries a move that it's weak against, use Mimic and send that attack back at it! If it uses an Earthquake, Teleport to higher ground. And if it tries another Supersonic, cover your ears again.

Move: Taunt, Thunderbolt, Future Sight
Sub: Double Team, Mimic, Teleport, Cover ears (all as needed)