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Configure quick selection by multiplier
Configure quick selection by percentage
Select cards to use
Select a card to upgrade to
Buy cards in the Shop, then select one to six cards from My cards.
Pick a card worth more than the combined value of your selected cards. Use the quick selections to help find a target.
Press Upgrade. Your selected cards are traded in for the attempt. If the upgrade succeeds, the target card is added to your inventory and Add to upgrade lets you select it for another attempt. If not, you still receive a card worth up to 3% of your trade-in.
