I rather take an extra 100 assessment points than 200 Atk on my Cerberus who typically gets over 13000 Atk anyway
Then we get to the last slot in the pack, which has: Foil Extended Art, Foil Borderless cards, Foil Alternate-Art Planeswalkers, and foil Rare and Mythic Retro or Schematic artifacts
Combined with Psychic Embrace and this Mega Gardevoir ex virtually has no limit to the kind of damage it can deal
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If the Benched Pokmon you target does have an Energy on it (if for any reason that youd do this instead of using its other attack or ending), then it does not switch the two Pokmon out
for one thing, one of the piles had most of the energy