This Mareanie is a Poison/Water-type Pokémon and the first Pokémon James from Team Rocket obtained in the Alola region.


When Mareanie sees James' purple face after he gets poisoned by it, it has a strong affection on him, even blushing red. Also, it likes to grab his head using its tentacles.


Mareanie first appeared attacking James because it wanted to eat his Corsola-shaped helmet, but later felt disappointed when it found out that it was only a helmet. After Jessie, who was attacked by its tentacles, gave James a push, it poisoned him, causing him to look like another kind of its species. Thus it blushed and started to chase him, much to his dismay.

Known moves

Move Episode/Chapter
James Mareanie Spike Cannon
Spike Cannon The Sun, the Scare, the Secret Lair!
Sludge Bomb The Sun, the Scare, the Secret Lair!
+ indicates this Pokémon used this move recently.*
- indicates this Pokémon normally can't use this move.

Voice actresses


  • Like Victreebel, Cacnea and Carnivine, Mareanie is the fourth Pokémon that shows affections for James.
  • Mareanie is the first Water-type Pokémon that James officially keeps on his team.
  • Mareanie is the second Pokémon James has owned that shows affection to him and is not a Grass-type. The first one being Chimecho which is a Psychic-type.


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