Factorial Area

Effect

While you have no face-up security cards, you can ignore this card's color requirements. [Security] [All Turns] All of your Black or Red [TS] trait Digimon gain ＜Blocker＞ (This Digimon can block in the blocker timing.) While you have [Vulcanusmon], they also gain ＜Link +1＞ (Add 1 to this Digimon's maximum links.) [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 Black or Red [TS] trait Digimon card from your hand with the play cost reduced by 3.

Source Effect

[Security] You may play 1 level 4 or lower Black or Red [TS] trait Digimon card from your hand or trash without paying the cost.