Extreme Evoboost is a Normal-type Z-Move with no power or accuracy rating as it is a status move. When used, it boosts the user's Attack, Defense, Special Attack, Special Defense, and Speed by two stages each. To activate Extreme Evoboost, the Pokémon must know the move "Celebrate" and be holding the Eevium Z-Crystal. This move is exclusive to Eevee and capitalizes on its potential, making it a highly strategic option in battle to drastically enhance its stats and become a formidable opponent.