When you have no face-up security cards, you can ignore this card's color requirements.

[Security] [All Turns] All of your green or yellow [TS] trait Digimon get +2000 DP. While you have [Merukimon] or [Minervamon], all of your green or
yellow [TS] trait Digimon gain [Alliance].

[Main] Add your bottom security card to the hand and place this card face up as the bottom security card. Then, you may play 1 green or yellow [TS] trait Digimon card from your hand with the play cost reduced by 3.