While you have no face-up security cards, you can ignore this card's color requirements.
[Security] [Your Turn] All of your Digimon with the [WG] trait gain [Vortex].
[Main] Add your bottom security card to the hand. Then, place this card face up as the bottom security card.

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