Ghostly Prison, Mirrormade, and Absorbing Man
I was playing against someone with ghostly prison, mirrormade as a copy of ghostly prison and absorbing man which was being made a copy of ghostly prison at the upkeep. What was happening was with these 3 cards, the cost to attack should have been 6 for each attacker, however, the cost kept accumulating by 2 every time absorbing man was being made a copy of ghostly prison, to the point where i had to concede because the cost became up to 38 mana per attacking creature.
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