With Pokemon Legends Z-A shaking up the battle system, there might be some Mega Evolution Pokemon that are more impactful than others.

Mega Evolution is making its long-awaited comeback in Pokemon Legends Z-A. After the mechanic was last used in Pokemon Let’s Go, Pikachu! And Let’s Go, Eevee! back in 2018, it had disappeared from the mainline series of games.
But Legends Z-A has turned things around, reintroducing Mega Evolution to the core series games after seven years. And that is not all, as Legends Z-A is introducing numerous new Mega Pokemon to the mix as well, more of which are being announced over time.
Here are some of the known Mega Evolution Pokemon that may be the most impactful in Pokemon Legends Z-A.
Which Mega Pokemon May Have the Biggest Impact

The primary purpose of Mega Evolution is for combat. As such, the most impactful Mega Evolutions tend to be the most powerful ones. Among the mega evolutions announced for Legends Z-A, a few of them stand out for their potential within the game’s combat system.
Mega Dragonite
Dragonite is what is classified within the Pokemon games as a pseudo-legendary; a fan term referring to powerful Pokemon with a three-stage evolutionary line, and a base stat total of 600. These tend to be among the most powerful non-legendary Pokemon of their respective generations.
Dragonite was already among the more powerful pseudo-legendaries thanks to its high natural bulk and Attack. The only thing that really held it back was its below-average Speed stat. However, now that Dragonite is getting an all-new Mega Evolution, its power will surely reach untold heights.
Its total stats post Mega Evolution should be 700, surpassing even most legendary Pokemon. As for what these stat increases go into, we will have to wait and see. But as of right now, Mega Dragonite is likely to be one of the most powerful Pokemon in Legends Z-A.
Mega Greninja

Now that Mega Evolution has returned, Legends Z-A has finally decided to give Greninja the Mega form that many fans feel it was robbed of. And if Ash-Greninja is any indicator of what we can expect, then Mega Greninja will surely turn the game upside down.
While Ash-Greninja (a transformation unique to Greninja) had a higher stat increase than normal mega evolution, it had certain characteristics that set it apart. For one, you needed to knock out an enemy Pokemon to activate it. But Mega Greninja is free of this flaw, and any other issues that may hold it back are equally present in all Mega Pokemon in Legends Z-A.
As such, Greninja’s sky-high Speed and offensive power will definitely earn you victory in a blink. This will definitely be one of the more impactful Mega Evolution Pokemon in Legends Z-A.
Mega Gyarados

Gyarados is one of the only Pokemon naturally available in almost every game in the mainline series. And it is present in Legends Z-A as well. The Atrocious Pokemon wields ferocious power after it evolves from Magikarp, and this power only increases with Mega Evolution.
One of the main points that helped Mega Gyarados stand out in its previous appearances was its ability, Mold Breaker. This allowed its own moves to ignore all other abilities. From the demo of Legends Z-A, it seems that abilities have been removed from the game, similarly to its predecessor, Legends Arceus.
However, this does not hinder Gyarados in any way, since there is no need to ignore abilities that do not exist. So in practice, regardless of whether Pokemon have abilities in Legends Z-A or don’t, Mega Gyarados’ performance will remain unchanged. In concert with its enormous base stat total, Mega Gyarados is a Mega Evolution that will shake up Pokemon Legends Z-A.

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