Anything faster than him will generally kill him before he can do much of anything, unless he is carrying a focus sash. Stuff like Aerodactyl, Jolteon, Noivern, Talonflame, Accelgor, Darkrai.
Talonflame is the best possible counter, since even if he runs Water Shuriken, Brave Bird will still out-prioritize and instantly kill him (again, assuming there is no focus sash). --- "Live and Learn! You may never find your way..."
252 Atk Life Orb Technician Breloom Mach Punch vs. 4 HP / 0 Def Greninja: 354-421 (123.7 - 147.2%) -- guaranteed OHKO
252 Atk Technician Breloom Mach Punch vs. 4 HP / 0 Def Greninja: 272-324 (95.1 - 113.2%) -- 75% chance to OHKO
Care to rethink?
I would say a 75% chance to OHKO will still OHKO Greninja 75% of the time. What is there to rethink? I mean, people gamble with Fire Blast and Hydro Pump despite the miss chance, so what's the difference here.
--- "Live and Learn! You may never find your way..."
Crawdaunt might be a good choice, as it resists all of that Greninja's moves except for extrasensory, which it takes no damage from --- friend code: 0774-4749-8448 friend zone dragon On YouTube with the same username. I will upload video's eventually