[Meta thread] Iron's PokeRole Adventure: The Skull Ruins

[Dragonstrike]

Dunny has access to Confusion and Curse, and Anubi can potentially Paralyze on a Force Palm / Angie can eventually proc it with Held Back/Debuffed Sky Falls (Have any 'mons that can lower STR?) , so after its Fainted we can get up to around - 9 or - 10 Total Will Points deducted from the big o' snakey. Hope that will be enough!

Confusion you have to at least inflict before KOing it, same as Sleep.  Not sure about Curse.  Paralysis would be a good status to inflict.  Definitely not going to be attempting to inflict Poison or Burn on it mid fight since none of my pokemon with a type advantage have those statuses available to them. Given how much of a beating an Onix can take, though, and how rare a fully grown one typically is, Nathan might not be opposed to inflicting those statuses after Onix has fainted.

Dedenne/Dittenne can lower Strength with Charm/Eerie Impulse+.  No other pokemon on hand that can do so, however.