Q1: What order do an effect that triggers when a card is removed from a security stack and a Security effect on a checked card activate when they trigger simultaneously upon a security check?
The Security effect will activate first. Upon a security check, a Security effect will immediately activate without pending activation.
Raging Serpentine BT21-093 C LIBERATOR When this card would be used, if your opponent has 3 or fewer security cards, reduce the use cost by 4. [Main] Delete 1 of your opponent's highest DP Digimon. Then, place this card in the battle area. [All Turns] When your opponent's security stack is removed from, <Delay> • 1 of your [Reptile] or [Dragonkin] trait Digimon may digivolve into a [Reptile] or [Dragonkin] trait Digimon card in the hand without paying the cost. --- [Security] Delete 1 of your opponent's Digimon with the highest DP.
Raging Serpentine BT21-093 C LIBERATOR When this card would be used, if your opponent has 3 or fewer security cards, reduce the use cost by 4. [Main] Delete 1 of your opponent's highest DP Digimon. Then, place this card in the battle area. [All Turns] When your opponent's security stack is removed from, <Delay> • 1 of your [Reptile] or [Dragonkin] trait Digimon may digivolve into a [Reptile] or [Dragonkin] trait Digimon card in the hand without paying the cost. --- [Security] Delete 1 of your opponent's Digimon with the highest DP.
Raging Serpentine BT21-093 C LIBERATOR When this card would be used, if your opponent has 3 or fewer security cards, reduce the use cost by 4. [Main] Delete 1 of your opponent's highest DP Digimon. Then, place this card in the battle area. [All Turns] When your opponent's security stack is removed from, <Delay> • 1 of your [Reptile] or [Dragonkin] trait Digimon may digivolve into a [Reptile] or [Dragonkin] trait Digimon card in the hand without paying the cost. ---