>>33226306Either you play or you watch others play. When you do, look at team preview or opponent/player teams in general and you'll eventually notice a trend. What you want your mindset to be is 'Which Pokemon do they have that come with reliable recovery and which don't?' and 'What Pokemon can be trapped or worn down with hazards?'
Example: Mega Charizard Y switch-ins are typically Lati@s, Zygarde, Nihilego, Chansey, Toxapex, Mantine, Mega Charizard X, Heatran, other Dragons as makeshift switch-ins. Heatran, Nihilego, Chansey, and Toxapex can be caught by Dugtrio, and Nihilego virtually always lacks recovery. Dragons typically lack recovery and can be brute-forced through, including Zygarde. Lati@s can succumb to Tyranitar, but you don't even need to run a Pursuit trapper such as it since Latias is rarely seen considering it was deemed UU and Latios has less bulk and has a harder time taking 2 Fire Blasts, not to mention most Latios you see are LO or Scarf (things you'd pick up on). Mega Charizard X is a thing, but its usage is discouraged because of how flooded the meta is with Lando-T (that's the other thing, capitalize on the most-used Pokemon where you can). Mantine is probably the best answer to Y that can't be trapped by Duggy without the need of Shed Shell, but its usage is scarce too, so making Y a mega for your team would be a good investment all things considered. With Mantine on the rise and Shed Shell Toxapex on the rise, you wouldn't make that decision.
