Royal Base (Event Pack 8) #P-181

[Security] [Your Turn] [Once Per Turn] When any of your Digimon would digivolve into a Digimon card with the [Royal Base] trait, reduce the digivolution cost by 1.
[Main] Add your top security card to the hand. Then, place this card face up as your bottom security card.

[Security] You may play 1 level 5 or lower Digimon card with the [Royal Base] trait from your hand without paying the cost.