Mega Evolution

Mega Evolution is a type of physical transformation Pokémon can undergo akin to a temporary evolution. A number of different Pokémon can Mega Evolve, including some already at a third evolutionary stage. Two prerequisites must be met before Mega Evolution can occur, however. First, the Pokémon must be holding a special type of Held Item called a Mega Stone. Mega Stones are specific to an individual species line and form; a Mega Stone that works for Charizard would not work for Blastoise. Second, their Trainer must be wearing an Accessory Slot item called a Mega Ring.

Causes

A Trainer's use of their Mega Ring, causing the Pokemon's Mega Stone to react.

Symptoms

When a Pokémon Mega Evolves, its Combat Stats receive an overall boost, and it gains a new Ability. Sometimes it even changes its Types. The Ability gained from Mega Evolution is always added to a Pokémon’s current Ability list and doesn’t replace a current Ability. A Pokémon cannot gain two instances of the same Ability through Mega Evolution, such as Mega Blaziken with Speed Boost. In those cases, the Mega Evolution instead grants another Ability the user can naturally gain but does not currently have.

"A sacred way to bring out your Pokemon's hidden power. Go beyond normal Evolution!"

Type

Genetic

Origin

Natural

Cycle

Short-term

Rarity

Unique

Mega Evolution can be triggered on either the Pokémon or the Trainer’s turn as a Swift Action. Once triggered, a Mega Evolution lasts for the rest of the Scene, even if the Pokémon is knocked out. A Mega Ring can only support one Mega Evolution at a time, meaning once a Trainer Mega Evolves a Pokémon, they can’t Mega Evolve any others for the rest of the Scene.