It cannot be knocked out with one hit. One-hit KO
moves cannot knock it out, either.

sturdy

Protects the Pokémon from recoil damage.

rock-head

heavy-metal

status

Physical damage, controlled by Attack and Defense

physical

Special damage, controlled by Special Attack and Special Defense

special

One specific move.  How this move is chosen depends upon on the move being used.

specific-move

One other Pokémon on the field, selected by the trainer.  Stolen moves reuse the same target.

selected-pokemon-me-first

ally

The user's side of the field.  Affects the user and its ally (if any).

users-field

Either the user or its ally, selected by the trainer.

user-or-ally

The opposing side of the field.  Affects opposing Pokémon.

opponents-field

user

One opposing Pokémon, selected at random.

random-opponent

all-other-pokemon

One other Pokémon on the field, selected by the trainer.

selected-pokemon

all-opponents

entire-field

user-and-allies

all-pokemon

all-allies

fainting-pokemon

normal

fighting

flying

poison

ground

rock

ghost

steel

fire

water

grass

electric

psychic

dragon

dark

fairy

unknown

shadow

When Aron evolves, its steel armor peels off. In
ancient times, people would collect Aron’s shed
armor and make good use of it in their daily lives.

aron

During territorial disputes, Lairon fight by
slamming into each other. Close inspection of
their steel armor reveals scratches and dents.

lairon

Long ago, there was a king who wore a helmet
meant to resemble the head of an Aggron. He
was trying to channel the Pokémon’s strength.

aggron

aggron-mega

generation-iii

mountain

The user sticks out its head and attacks by charging
straight into the target. This may also make the
target flinch.

headbutt

A physical attack in which the user charges and
slams into the target with its whole body.

tackle

The user stiffens all the muscles in its body to raise
its Defense stat.

harden

The user hurls mud in the target’s face to inflict
damage and lower its accuracy.