Legendary Key
Description by Phantom [Shopkeeper]:
"What a fancy key! But where is the lock?"
Can be stacked for the better effect: No
Can be used by: Any BFB below legendary rarity
Effect: Upgrades character to the Legendary rarity. Allows to add a legendary subtype to a character and expands the trait limit.
Can be combined with: -
Obtainable in: Limited Events