

Q1: In what order do a Security effect, "when ... performs a security check" effect, and "when a card is removed from ... security stack" effect activate when they trigger simultaneously upon a security check?
Security effects take precedence for activation. Upon a security check, a Security effect will immediately activate without pending activation. For other triggered effects, the turn player activates their effects first.
Lv.2 Gigimon BT24-001 C In-Training | Lesser/LIBERATOR --- [Your Turn] [Once Per Turn] When your opponent's security stack is removed from, you may delete 1 of their Digimon with 3000 DP or less.
Gigimon BT24-001 C In-Training | Lesser/LIBERATOR - --- [Your Turn] [Once Per Turn] When your opponent's security stack is removed from, you may delete 1 of their Digimon with 3000 DP or less.
Lv.2 Gigimon BT24-001 C in-training | Lesser/LIBERATOR --- [Your Turn] [Once Per Turn] When your opponent's security stack is removed from, you may delete 1 of their Digimon with 3000 DP or less.
Lv.2 ギギモン BT24-001 C 幼年期 | レッサー型/リベレイター --- 【自分のターン】[ターンに1回]相手のセキュリティが減ったとき、DP3000以下の相手のデジモン1体を消滅できる。