Illusionary Mask [30th Anniversary Edition] Card Collection Set: Diamond & Pearl: Great

Set: Diamond & Pearl: Great Encounters Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Set: Pokémon Rumble Type: Metal Rarity: Promo Retreat cost: Colorless

This effect can't reduce the mana in that cost to less than one mana

Set: Aquapolis Type: Metal Rarity: Uncommon Retreat cost: Colorless

Set: Sun & Moon: Black Star Promos Type: Grass Rarity: Black Star Promo

Illusionary Mask [30th Anniversary Edition] Card Collection Set: Diamond & Pearl: GreatSet: 30th Anniversary Edition Type: Artifact Rarity: Rare Cost: {2} {X}: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on {X}. If you do, you may cast that card face down as a 2 2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead