Aromatisse

Due to its good offensive typing, access to Trick Room to mitigate its rather low Speed, and access to Nasty Plot to augment its already decent Special Attack, Aromatisse is capable of performing as an effective late-game sweeper that can pose a threat to offensive and defensive teams alike. Aromatisse's typing is solid defensively as well, allowing it to check Pokemon such as Assault Vest Hariyama, Sneasel, and Malamar. This, in combination with its good mixed bulk, gives it an easier time setting Trick Room. Decent coverage in Psychic also allows Aromatisse to deal with Poison-types that would otherwise put a damper on its attempts at sweeping. However, Aromatisse suffers from rather average overall stats, which often forces it to use both Trick Room and Nasty Plot in order to begin sweeping. While good defensively, its pure Fairy typing unfortunately burdens it with weaknesses to Poison- and Steel-type attacks, both of which are fairly common in NU. Aromatisse will often have to take a hit before setting Trick Room for itself, which can be problematic versus stronger attackers such as Mega Glalie, and its susceptibility to all forms of entry hazards making it easier to wear down only makes matters worse.