Question

Will Pain Split work with the list, since it takes down their health and would reset mine?

HydraPorcuDuck Community Answer

Yes, you can use Pain Split, although you would have to use it with a Pokemon who has Sturdy, such as Nosepass. This is because the Focus Sash breaks when used once, so it won't leave the Rattata at 1 HP, but instead kill it. Also, using Pain Split requires extra damage dealt, such as Toxic or Sandstorm, because the lowest health Pain Split can leave the opponent at the health of your Pokemon.