>>41844540Yes. I've cleared it twice by taking the following
Cheren - Decent damage and support
Roxanne - Nullify Solrock's Explosion
Pheobe - Decent damage, tanky (use sync to taunt mewtwo) and support (atk and crit)
IIRC I think it requires the other two to have grimsley/brycen, physical damage dealers and not be dumb. I cannot overstate how essential Roxanne and Nosepass were. Every pug needed that wide guard to have a chance at mewtwo.