pokemon phantasmal flames booster box sealed case TCG: Mega Evolutions Display : Toys & Games and both Pokémon prepare to attack Pokemon TCG Mega Evolution: Phantasmal

Full-art holo pattern covering most of the card

The strategy is to play Mewtwo in the active slot after you have built up enough energy and then use Gardevoirs Psy Shadow ability to refill Mewtwos energy for Psydrive each round, pulling an extra energy alongside the one you are automatically given every round

Some cards in Duskmourn: House of Horror have alternate artwork (and collector numbers) from their main set counterparts that contain a monster of Duskmourn lingering in the background

Later on though, WotC limited this part of the policy when they started printing extremely limited release promos, mostly Judge Rewards