Magearna

Magearna is blessed with a strong typing that allows it to check Yveltal, one of the most prominent Pokemon in Ubers. Magearna also has a pivoting move in Volt Switch and is the only Steel-type that can provide cleric support, fulfilling a very unique role. However, it directly competes with Necrozma-DM as a Steel-type on most teams, which tends to outclass it, and can only fit on specific team archetypes. It also cannot beat Xerneas, which can outdamage the healing Pain Split and Leftovers provide. Its role as a cleric is also contested by the likes of defensive Xerneas, Blissey, and Calyrex-S, which can fit on more team styles and provide more overall utility.