Beast Boost

Gen VII

Effect

Raises this Pokémon's highest stat by one stage when it faints another Pokémon.

GenerationGen VII

Pokemon11

Hidden Ability Holders0

Game Descriptions

Gen VIIThe Pokémon boosts its most proficient stat each time it knocks out a Pokémon.

Gen VIIIThe Pokémon boosts its most proficient stat each time it knocks out a Pokémon.

Beast Boost in Battle

Beast Boost raises the Pokemon's highest stat by one stage each time it knocks out an opposing Pokemon. The stat that gets boosted is determined at the start of battle based on the Pokemon's actual stats after EVs, IVs, and nature are applied — not base stats. If two stats are tied, the game uses a fixed priority order: Attack, Defense, Special Attack, Special Defense, Speed.

This snowball effect makes Ultra Beasts progressively more dangerous with each knockout. For example, Pheromosa will typically boost its Speed or Attack, while Xurkitree will boost its massive Special Attack, potentially reaching overwhelming levels after just one or two knockouts.

Beast Boost is the shared signature ability of all Ultra Beasts introduced in Generation VII, including Nihilego, Buzzwole, Pheromosa, Xurkitree, Celesteela, Kartana, Guzzlord, Poipole, Naganadel, Stakataka, and Blacephalon. The ability reinforces the offensive playstyle these Pokemon are designed around.

Pokemon With Beast Boost (11)

# ▲	Name	Type	Other Abilities	Hidden?	HP	Atk	Def	SpA	SpD	Spe	Total
#793	Nihilego	rock poison	–	Regular	109	53	47	127	131	103	570
#794	Buzzwole	bug fighting	–	Regular	107	139	139	53	53	79	570
#795	Pheromosa	bug fighting	–	Regular	71	137	37	137	37	151	570
#796	Xurkitree	electric	–	Regular	83	89	71	173	71	83	570
#797	Celesteela	steel flying	–	Regular	97	101	103	107	101	61	570
#798	Kartana	grass steel	–	Regular	59	181	131	59	31	109	570
#799	Guzzlord	dark dragon	–	Regular	223	101	53	97	53	43	570
#803	Poipole	poison	–	Regular	67	73	67	73	67	73	420
#804	Naganadel	poison dragon	–	Regular	73	73	73	127	73	121	540
#805	Stakataka	rock steel	–	Regular	61	131	211	53	101	13	570
#806	Blacephalon	fire ghost	–	Regular	53	127	53	151	79	107	570

Related Abilities (Gen VII)

Ability	Pokemon	Description
Stamina	3	Raises this Pokémon's Defense by one stage when it takes damage from a move.
Wimp Out	1	This Pokémon automatically switches out when its HP drops below half.
Emergency Exit	1	This Pokémon automatically switches out when its HP drops below half.
Water Compaction	2	Raises this Pokémon's Defense by two stages when it's hit by a Water move.
Merciless	2	This Pokémon's moves critical hit against poisoned targets.
Shields Down	14	Transforms this Minior between Core Form and Meteor Form. Prevents major status ailments and drowsiness while in Meteor Form.
Stakeout	9	This Pokémon's moves have double power against Pokémon that switched in this turn.
Water Bubble	3	Halves damage from Fire moves, doubles damage of Water moves, and prevents burns.

Beast Boost

Beast Boost in Battle

Pokemon With Beast Boost (11)

Related Abilities (Gen VII)

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