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While the A.I

If an effect allows you to put a card with particular characteristics onto the battlefield without instructing you to play or cast it, consider only the characteristics of a modal double-faced card's front face to see if that card qualifies

Cards in near-mint condition are generally the most valuable Pokmon energy cards

You can still obviously double +1/+1 counters and other useful counters like shield counters, but also double up experience counters or energy counters as its originally intended

Looking at other UR cards like Mirror Force, Mystical Space Typhoon, and Book of Moon, we can see that the best cards in the game are UR cards