Meowstic works well as a screen user holding Light Clay, plus, competitive can be useful when one of its stats are lowered. For the other hand, Alakazam is really fast and got a huge Sp. Atk. But it's to fragile on Def. I see Reniclus as another Slowbre. Espeon is a great addition too, thought it's the same as Alakazam, fragile. Definitely, for Psychic Type, I would go for Metagross.