Naganadel

Naganadel is a strong sweeper and cleaner for hyper offense teams with good coverage and strong STAB moves. Nasty Plot is the key to its success, boosting its already high Special Attack much further, which, when coupled with Life Orb, threatens many common defensive Pokemon. It's naturally very fast, and Beast Boost only increases its Speed further. Unfortunately, Naganadel has poor defenses, leaving it susceptible to being revenge killed, and it provides little defensive ability. Its reliance on Nasty Plot for power can also be quite detrimental, as it can be KOed while setting up. Naganadel also faces strong competition from numerous offensive wallbreakers in the tier, directly competing with Eternatus as a Poison / Dragon type wallbreaker, as well as with other special attackers like Xerneas and Calyrex-S.