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Unlocking and upgrading the Mine is a valuable long-term investment that pays for itself once you’ve invested 100 days into playing the game. It isn’t cheap to open and fully upgrade, but once it’s done, it provides a steady flow for the remainder of the player’s time in RAID: Shadow Legends.
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The Gem Mine can be found in the bottom-left corner of the Bastion, and is your best source of constant, reliable Gems.
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