Tankchomp dies to it while only making it take RS+RH damage if it switches into it as it SD's
+2 252 Atk Aerilate Mega Pinsir Return vs. 252 HP / 252+ Def Garchomp: 369-435 (87.8 - 103.5%) -- 25% chance to OHKO
Lando-T is a better check to it as it at least makes it more manageable with intimidate. Other electrics can check it but can rarely switch directly into it less they risk getting shot by CC or EQ. I mean aside from a healthy Rotom-W no electric can really switch even safely into Mega Pinsir. Zapdos resists whatever Mega Pinsir tries to throw at and can t-bolt it and roost off the damage. Defog is lackluster on Zapdos I agree but Zapdos is still one of the best answers there is to Mega Pinsir so it is at least not gonna drop immensely in usage and if Mega Pinsir jumps in popularity it will definitely make Zapdos more popular again.
I disagree with both of you. Empoleon is not weak to any hazards really and has defog. Empoleon us is our best defogger. Zapdos supplies us with an offensive defogger that can hit water types really hard. Just because its weak to rocks does not make it shitty in the slightest. Other options include agility sweeper, specs, scarf, and bulky toxic. Zapdos will suite us fine for now although having other drops like sylveon conkeldurr and celebi would have been awesome.