Mega Evolution

Overview

Mega Evolution is a mechanic introduced in Pokemon X/Y. Mega Evolution allows the player to temporarily transform certain Pokemon into stronger forms during a battle. When Pokemon Mega Evolve their type and/or ability may change, allowing them to function differently in battle.

Effects

When a Pokemon Mega Evolves, its base stats and ability change. Depending on the Pokemon, its type may change as well, granting it resistances, immunities or weaknesses. The changes caused by Mega Evolution often allow a Pokemon to behave differently in battle, often allowing it to take better advantage of its type combination or base stats and move. For Example, Mega Kangaskhan's Parental Bond ability allows it to better utilize its Attack stat by making all damaging moves attack twice, with the second attack dealing half damage.

The Mega Evolving Pokemon's base stats also increase during the evolution. The base stat increases vary from Pokemon to Pokemon, but the Mega Pokemon's base stats are always 100 points higher than that of their base form. The sole exception to this is Mega Alakazam, whose base stats are 90 points higher than those of its base form (however, the base stat increase would be equal to 100 if compared to Alakazam's base stats prior to Generation VI).

Limitations

Due to the powerful effects of Mega Evolution, some limitations have been placed to prevent the mechanic from being overused. Each Trainer may only Mega Evolve one Pokemon per battle. Mega Pokemon will revert back to their base form if knocked out. Pokemon may only Mega Evolve once per battle, so if a Mega Pokemon is knocked out and revived, it may not Mega Evolve again. Mega Pokemon will also revert to their base form when a battle ends. In order for a Pokemon to Mega Evolve, it must also be holding a Mega Stone. Each Pokemon capable of Mega Evolution has its own unique Mega Stone that must be obtained and given to the Pokemon to hold before it can Mega Evolve.

Mega Evolution Capable Pokemon

Below is a table listing all known Mega Evolution capable Pokemon, their types in both their base forms and Mega Forms, as well as possible base form abilities and their Mega Form ability.