This was sold by Commander Lo Ping for 1,000 Justice Points. Due to the removal of the currency in Patch 6.0.2, this item was removed from the vendor.
To use this item, you must summon the pet that you want to upgrade to Uncommon. There are technically two ways to upgrade: Target the summoned pet and then right-click the battle-stone; or right-click the battle-stone and then left-click the summoned pet.
IMPORTANT: The pet, if level 15+, will lose one to two levels in the process.
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