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Merciless ひとでなし
Flavor text
Generation VII
The Pokémon's attacks become critical hits if the target is poisoned.
Generation VIII
Currently unknown

Merciless (Japanese: ひとでなし Miscreant) is an Ability introduced in Generation VII. It is the signature Ability of Mareanie and Toxapex.



In battle

Attacks used by the Pokémon with this Ability will always become critical hits against poisoned targets, unless that target has Battle Armor or Shell Armor or is under the effects of Lucky Chant.

Outside of battle

Merciless has no effect outside of battle.

Pokémon with Merciless

# Pokémon Types First Ability Second Ability Hidden Ability
Mareanie Mareanie Poison Water Merciless Limber Regenerator
Toxapex Toxapex Poison Water Merciless Limber Regenerator
Please note that this is only 100% accurate to Generation VII games.
  • For Generation III games, ignore Abilities introduced in Generation IV or later and Hidden Abilities.
  • For Generation IV games, ignore Hidden Abilities.
  • For Generation V games, ignore Abilities introduced in Generation VI or later.
  • For Generation VI games, ignore Abilities introduced in Generation VII or later.

In the manga

In the Pokémon Adventures manga

In other languages

Language Title
Chinese Cantonese 不仁不義 Bātyàhnbātyih
Mandarin 不仁不義 / 不仁不义 Bùrénbùyì
France Flag.png French Cruauté
Germany Flag.png German Quälerei
Italy Flag.png Italian Spietatezza
South Korea Flag.png Korean 무도한행동 Mudohan Haengdong
Russia Flag.png Russian Беспощадность Besposhchadnost'
Spain Flag.png Spanish Ensañamiento

Project Moves and Abilities logo.png This article is part of Project Moves and Abilities, a Bulbapedia project that aims to write comprehensive articles on two related aspects of the Pokémon games.