Illusionary Mask [30th Anniversary Edition] Card Collection [All Turns] While a card

[All Turns] While a card with [Royal Knight] in its traits is in this Digimon's digivolution cards

and that player loses life equal to the total mana value of those cards

Set: Sun & Moon: Lost Thunder Type: Lightning Rarity: Promo Retreat cost: 1

Set: EX: Team Magma vs Team Aqua Type: Water Rarity: Ultra Rare Retreat cost: Colorless

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

Illusionary Mask [30th Anniversary Edition] Card Collection [All Turns] While a cardSet: 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