Upgrade Core

This article contains information related to Warcraft Rumble, which is considered non-canon.

Upgrade Cores (or just cores) is the virtual currency needed to upgrade Warcraft Minis to the next tier. It is needed along with Star Points and Arclight Energy to upgrade a unit in rarity, with only one core of the type needed for each upgrade.

Source

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Rare cores can be obtained from daily rewards or by completing heroic zones.

Types

	Quality	Notes
	Rare	Upgrades a mini from Uncommon quality
	Epic	Upgrades a mini from Rare quality
	Legendary	Upgrades a mini from Epic quality

Notes

• This currency can be viewed on Battle.net's Virtual Wallet along with other Battle.net account currency such as the Arclight Coins, [Trader's Tender], Overwatch Coins, and Diablo Platinum.