Ability · Gen 7 · 1 Pokémon
Shadow Shield
If this Pokemon is at full HP, damage taken from attacks is halved.
Shadow Shield was introduced in Generation 7. 1 Pokémon and forms can have it.
Pokémon with Shadow Shield
As a regular ability (1)
LunalaShadow Shield FAQ
What does Shadow Shield do?
If this Pokemon is at full HP, damage taken from attacks is halved.
Which Pokémon have Shadow Shield?
1 Pokémon and forms can have Shadow Shield: Lunala.
Effect text from Pokémon Showdown (MIT); which Pokémon have it from Showdown's Pokédex, cross-checked against PokéAPI. Unofficial fan site.