Grassium Z (Japanese: クサＺ Grass Z) is a type of Z-Crystal introduced in Pokémon Sun and Moon. It is the type-specific Z-Crystal associated with the Grass type and allows Pokémon to upgrade their Grass-type moves to Z-Moves.
Pokémon Global Link artwork
Introduced in Generation VII
In the core series games
S M US UM N/A
Can create Grassium Z held items for the player's Pokémon.
Allows the holder to upgrade its
Grass-type damaging moves to the Z-Move Bloom Doom or upgrade its Grass-type status moves into Z-Moves.
Unaffected by item negating effects (such as
Embargo and Klutz). Item manipulating effects (such as Trick and Fling) cannot remove a Z-Crystal from a Pokémon.
Multitype changes an Arceus holding this item to its Grass-type form. Rayquaza cannot Mega Evolve if it holds a Z-Crystal.
Outside of battle
A held Grassium Z is automatically removed if the Pokémon is
traded between players.
Multitype changes an Arceus holding this item to its Grass-type form.
S M US UM It converts Z-Power into crystals that upgrade Grass-type moves to Grass-type Z-Moves.
S M US UM This is a crystallized form of Z-Power. It upgrades Grass-type moves to Z-Moves.
Acquisition In the anime
A Grassium Z in the
anime Ash obtained a Grassium Z from a Totem Lurantis after completing the Lush Jungle trial in . He and Currying Favor and Flavor! Rowlet first used it in to perform Trials and Determinations! Bloom Doom. In , the Beauty is Only Crystal Deep! Ultra Guardians used it, along with Ash's Normalium Z, Rockium Z, Solganium Z, and Steelium Z, and Lillie's Icium Z, as bait for a Pheromosa.
A full set of
type-specific Z-Crystals, including the Grassium Z, appeared in , where A Grand Debut! Hapu allowed Ash to choose his grand trial prize from them.
Mallow obtained a Grassium Z from Tapu Koko in as a reward for helping A Recipe for Success! Oranguru operate its forest café.
A full set of replicas of the type-specific Z-Crystals, including the Grassium Z, appeared in
, where they were shown to Ash and A Team-on-Team Tussle! his classmates by Professor Kukui.
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