>>27385383Every mega evolution has a 100 point higher base stat total (exception of Mega Alakazam, which is only 90 higher for stupid reasons). Some mega evolutions gain a new ability from mega evolving. All at the loss of an item slot.
In terms of in-game wise, mega evolutions are absolutely broken. A good mega Pokemon utterly steamrolls through the entire game. As far as I recall from the Battle Maison in X and Y, the enemies in single battle couldn't do a damn thing about my Speed Boost Mega Blaziken.
In terms of competitive, some mega evolutions are absolutely broken.
-Mega Kangaskhan gets two hits in every turn to keep boosting its attack.
-Mega Rayquaza is almost entirely unstoppable and doesn't even require a mega stone.
-Mega Manectric just maintains great momentum with Volt-Switch and Intimidate.
-Mega Lucario is a one-turn setup to either sweep physically or sweep specially. If you predict that wrong, he'll get another boost in and take down your entire team with Adaptability priority moves.
-Mega Aerodactyl sets up in one turn and then sweeps with 113% accurate Stone Edge
-Mega Altaria, Mega Salamence and Mega Metagross all become bulky as fuck with great sweeping potential.
-Mega Scizor and Mega Tyranitar are essentially just harder to kill variants of Scizor and Tyranitar.
-Mega Mawile gets Huge Power, Swords Dance and a boost up to 105 base Attack.
