252+ SpA Choice Specs Flabebe Hidden Power Rock vs. 4 HP / 0 SpD Mega Charizard Y: 372-440 (124.8 - 147.6%) -- guaranteed OHKO
Flabebe-E can easily just carry Hidden Power Rock for the job since her offensive movepool is so limited. I didn't check the LO calc, but I think even Flabebe with LO equipped can OHKO Char Y with HP Rock. Darmanitan to Flabebe-E isn't a really fair comparison, though, because they both fulfill different roles on a team.
Flabebe-E can easily just carry Hidden Power Rock for the job since her offensive movepool is so limited. I didn't check the LO calc, but I think even Flabebe with LO equipped can OHKO Char Y with HP Rock. Darmanitan to Flabebe-E isn't a really fair comparison, though, because they both fulfill different roles on a team.