sturdy
Effect:
When this Pokémon is at full HP, any hit that would knock it out will instead leave it with 1 HP. Regardless of its current HP, it is also immune to the one-hit KO moves: fissure, guillotine, horn drill, and sheer cold. If this Pokémon is holding a focus sash, this ability takes precedence and the item will not be consumed.
Pokemon with the ability:
geodude
graveler
golem
magnemite
magneton
onix
sudowoodo
pineco
forretress
steelix
shuckle
skarmory
donphan
nosepass
aron
lairon
aggron
relicanth
regirock
shieldon
bastiodon
bonsly
magnezone
probopass
roggenrola
boldore
gigalith
sawk
dwebble
crustle
tirtouga
carracosta
tyrunt
carbink
bergmite
avalugg
togedemaru
cosmoem
nacli
naclstack
garganacl
archaludon
geodude-alola
graveler-alola
golem-alola
togedemaru-totem
avalugg-hisui
ogerpon-cornerstone-mask