I ran this fight a few times and got really good luck on this attempt. Psychic reduced Pidgeot's Sp. Def allowing for the 2HKO, and silver wind boosted my stats on both exeggcute and alakazam, and then Charizard used scary face instead of flamethrower and I was still able to outspeed him for the 2HKO thanks to the silver wind boosts. Gyarados just used dragon rage.
>>36866964Most people actually grind their mons to high levels, although I prefer faster, low level runs so I usually use X items. I haven't used any in this run yet though, although if it wasn't for the silver wind boosts I would probably have needed to.