I got into this challenge
Bruno
Level 46
Thrash
Seismic Toss
Low Kick
Karate Chop

JayLevel 48
Karate Chop
Seismic Toss
Low Kick
Focus Energy

Ricky
Level 45
Karate Chop
Low Kick
Earthquake
Seismic Toss
Lanker
Level 50
Double Kick
Meditate
Rolling Kick
Hi Jump Kick

Whirly
Level 46
Hypnosis
Counter
Body Slam
Surf
I'm at the Pokémon Mansion grinding my Pokes to level 50. God, it's such a good training spot for fighting types