In ORAS, there were 20 new Mega Evolutions being introduced to add onto the total number of Mega Evolutions. Let's take all of them to see how much I like them.
#20
Mega Latios is my least favorite ORAS mega. It doesn't really change much out of Latios's appearance, and it just feels there. It's not that good in battle at all, because none of the stat boosts it gets make it any better, since its boosted Special Attack is negated by the fact that regular Latios does about the same amount of damage with a Life Orb or even more damage with Soul Dew.
#20
Mega Latios is my least favorite ORAS mega. It doesn't really change much out of Latios's appearance, and it just feels there. It's not that good in battle at all, because none of the stat boosts it gets make it any better, since its boosted Special Attack is negated by the fact that regular Latios does about the same amount of damage with a Life Orb or even more damage with Soul Dew.