>>41363297its less that they don't know how to, its that they just don't want to. Marshadow is a physical attacker. Really the issue is that gamefreak has several "rules" of varying rigidity, and one of them is that ghost types have low hp. The IDEA is pain split is a move that exists but no ghost type has enough in their defense stats to take the next hit without being reduced back to where they were before they used the move. Its an odd state of affairs when sableye and its shit stats is a better defensive mon than things like dusknoir which are built to be defensive, and all just because it gets (priority) recover and the tools to screw with enemies and clap back fairly well with foul play.