Umbreon

With access to Wish and Heal Bell, Umbreon has an ideal movepool for a cleric in UU. Furthermore, its incredible 95 / 110 / 130 bulk and mono-Dark typing let it stand up to a decent number of attackers in UU. However, many Pokemon that Umbreon would like to wall often carry a coverage or utility move to stop it cold: Focus Blast is common on Mega Sceptile, Choice Specs Kyurem, and Choice Specs Hydreigon; Nidoqueen and Life Orb Hydreigon can carry Taunt; and Life Orb Roserade frequently carry Sleep Powder. Additionally, reliance on Wish + Protect to keep itself healthy can often cause the Umbreon user to lose momentum against offensive teams, especially because Umbreon allows threats such as Conkeldurr, Sylveon, and Cobalion to switch in with little risk. In general, Blissey, Sylveon, and Florges are more reliable special walls and clerics.