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Mk. VI Gerolf is a Unique Monster in Xenoblade Chronicles 2. It is a member of the Sovereign family, and can be found at level 66 at the Alioth, Elevator #3 in the World Tree. It must be defeated to unlock Poppibuster's level 4 "Superstrength".


Name Type Rarity Rate
Hadron Chip Core Chip Rare (rarity 2) 9.0%
Ether Defense Up IV Aux Core Rare (rarity 2) 7.0%
Break Resist IV Aux Core Rare (rarity 2) 7.0%
Fast Blade Switch IV Aux Core Rare (rarity 2) 7.0%
Sword Attachment Accessory Rare (rarity 2) 7.2%
Sword Attachment Accessory Legendary (rarity 3) 4.8%
Common Core Crystal Core Crystal Common (rarity 1) 20.0%
Rare Core Crystal Core Crystal Rare (rarity 2) 13.0%
Legendary Core Crystal Core Crystal Legendary (rarity 3) 3.9%