Love this thread! This new metagame idea seems pretty interesting, and I really want to be a part of it. Just looked through the Google Docs spreadsheet, and decided to pick the forgotten Lake Trio. It's about time that they get some credit, and what better way to do so than Mega Evolutions? :D I guess someone would have to do them anyway because we all know they'll be forgotten about in the DPP remakes >.<
~Azelf
Typing: Psychic -----> Psychic
Abilities: Levitate -----> Mindsight
BST: 75/125/70/125/70/115 -----> 75/150/65/150/115/125
New Moves: Healing Wish, Psycho Boost
Concept: Upon Mega Evolution, Azelf gains a new ability called Mindsight. This prevents opposing Pokemon to not be able to use status moves while Azelf is in play. This allows Azelf to set up Stealth Rocks, or any other supporting move without ease. It also has base 150 attack and special attack stats to allow Azelf to sweep up if it needs to, however has a hindering base 65 defense stat to attempt at balancing it out. Azelf's new offensive pressure, access to both Explosion and Healing Wish, and Mindsight give it a threatening position in the metagame.
~Mesprit
Typing: Psychic -----> Psychic/Dark
Abilities: Levitate -----> Dark Purge
BST: 80/105/105/105/105/80 -----> 80/125/125/125/125/105
New Moves: Night Daze
Concept: Mesprit is a top threat in RU. Something, isn't it? Levitate really comes in handy with those pesky ground types... Yeah, no. Like Azelf, Mega Mesprit gets an awesome new ability too: Dark Purge. This ability forces half the damage from any attack done to Mega Mesprit back to the user. This gives Megasprit some amazing bulk, minding the 80/125/125 defenses. Along with Dark Purge, Mesprit also gains a secondary Dark typing, and access to Night Daze, a now STAB move. Night Daze hits both opponents hard, and leaves them with lowered special attack stats. With a new STAB, and ability, Megasprit is a tough Pokemon to shut down.
~Uxie
Typing: Psychic -----> Psychic
Abilities: Levitate -----> Third Eye
BST: 75/75/130/75/130/95 -----> 75/80/150/100/185/95
New Moves: Mean Look, Lucky Chant
Concept: In the past, Uxie has played a lot of roles varying from a lower tiered Azelf to a Rest Talker set. But no matter what Uxie runs, it's always outclassed by something in the higher tiers. However, that all changes with Uxie's Mega Evolution. Uxie's already defensive stats are boosted up further to 75/150/185, giving it a refreshing new bulk distribution. Even better, Mega Uxie is given the new ability Third Eye. This ability drains HP from opponents each turn, depending on the number of status moves they run. 1/16 is drained for one, 1/12 is drained for two, while 1/8 is drained from two or three status moves. Uxie is also gifted with Mean Look, and Lucky Chant. This locks in opponents to a rather unlucky situation.