Chansey

Chansey is a nonconventional pick mostly seen on hyper offense and stall teams. Its immunity to Ghost, combined with its increased physical bulk compared to Blissey, makes Chansey a great switch-in to both of Calyrex-S's STAB moves, which is especially useful for hyper offense teams. Chansey's gargantuan special bulk allows it to switch in on many threats for offensive teams such as Kyogre, Xerneas, and Lunala. Its great utility movepool, including Thunder Wave, Stealth Rock, and Healing Wish, also offers a plethora of options to support both offensive and defensive teams alike. Teleport, in particular, grants momentum via a slow pivot, which is extremely beneficial for hyper offense teams. On stall teams, Chansey has higher physical bulk than Blissey and can support its team with Toxic, Aromatherapy, and Stealth Rock. However, that's pretty much all the good with Chansey, as it is inferior to Blissey in almost every other way; having to hold Eviolite means Chansey is easily crippled by entry hazards, which Heavy-Duty Boots Blissey has a better time against, and it can easily fall to Kyogre, whereas Utility Umbrella Blissey does not. Also, even though it has great bulk, it will still fall quickly on hyper offense teams, as the team's fast-paced nature does not give it opportunities to heal.