Hydreigon

Hydreigon is a decent role compression choice, possessing some much appreciated resistances to common offensive types, such as Ghost, Water, and Fire, while also being immune to Psychic and Ground. In a pinch, it can provide the utility of both Yveltal and Eternatus while also checking Groudon. Hydreigon differentiates itself from offensive Eternatus with Nasty Plot, making it a terrifying attacker with very few defensive answers. Sadly, Hydreigon can never be a team's only answer to the threats it checks because of its middling bulk, leading to it stacking weaknesses on teams and competing heavily with Eternatus, which is much more defensively stable. Additionally, Hydreigon is very reliant on Nasty Plot to effectively wallbreak, and it struggles to safely set up because of its poor bulk, its mediocre Speed, and the recoil damage from Life Orb, making it easy to revenge kill too. Lastly, because Draco Meteor harshly drops Hydreigon's Special Attack, Hydreigon cannot repeatedly use its strongest attack and must rely on its teammates to clean up.