>>32196897Having flaws doesn't mitigate how successful they are in their roles. It's like saying Blaziken wasn't banworthy last gen because it had a glaring flaw in super effective priority, e.g. Azu, M-Pinsir, Talon.
Defensively, Chansey and Blissey go overboard in the special area, since no special hit that hits on the special side can break them, and special setup is either insignificant (e.g. Volcarona against Toxic) or can be addressed by another mon on the team (e.g. QD Pheromosa with an answer in Clef), whereas the special attackers that hit on the physical side can be accounted for as well since Keldeo, Tapu Lele, and Hoopa-U are some of the only ones strong enough to even 2HKO Chansey with their special attacks so the intention is more broadcasted.
It should worry more people that the mons that do break Chansey on the physical side are necessarily powerful as well. For example, Scarf Chomp's Outrage doesn't even 2HKO, so there obviously is some high threshold expected. Sure you can have a dedicated answer to Chansey, but it becomes a matter of connecting blows with it, which is easier said than done unless you have general breakers like Mega Mawile where they may leave Chansey in as a sac or to get off a bit of damage with Seismic Toss.
On top of that, defaulting to the best Pokemon in the game doesn't help since there's a high chance those 'best Pokemon' are going to be suspected sometime down the road. Mega Metagross, one of these 'best Pokemon', is like Mega Mawile in being able to overwhelm stall in general with Electric Terrain backup, so if they leave it in it's because Chansey is a sac or because they're about to click Counter and kill M-Meta.
