Miraidon

Thanks to Miraidon's outstanding power cementing it as one of the most potent wallbreakers in the metagame, it is a staple on balance and bulky offense, and every team needs to have effective counterplay for it. U-turn makes Miraidon an amazing pivot, allowing it to safely bring in teammates such as Koraidon and Calyrex-S. However, due to the prevalence of the Ground-types Ting-Lu and Arceus-Ground, which can force Miraidon out one-on-one, it has a tough time safely coming in and wallbreaking. Additionally, Calyrex-S and Choice Scarf Koraidon can revenge kill Miraidon. Keeping this in mind, Miraidon really appreciates teammates such as Ho-Oh and Ting-Lu that are able to check Ting-Lu, Arceus-Ground, and offensive wallbreakers such as Koraidon and Calyrex-S.