definitely machamp+no guard+fissure but that's illegal
commented 8 minutes ago by kiyertok
It does work, but no longer now, since
- Machamp must have its Hidden Ability because it has a move only available from Gen 1-2 Virtual Console transfer.
So it's illegal. When you go for ability, Perish Song+Shadow Tag works, such as with Mega-Gengar.
If not counting ability, then Mind Reader/Lock-On with one hit KO move works, such as Mind Reader Articuno + Sheer Cold as Pokemaster told:
Articuno can learn Mind Reader (guaranteed hit next move) and Sheer Cold (OHKO). I think Poliwrath could also learn a similar combination in generation 2. And of course, Smeargle can learn any move, so Mind Reader or Lock-On then a OHKO move would work.
Mean look + Perish Song also works if ability aren't counted, but as you told, with abilities, so it won't count. As already told, No Guard machamp is incompatible, so the ones would be Perish Trap + Shadow Tag Mega Gengar, not counting abilities means Mind Reader+OHKO moves and Whirlpool/trapping move with Perish Song.