3 official rulings from Bandai, last ruled Apr 4, 2025. Straight answers to how this card actually resolves.

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.
Ruled Apr 4, 2025
[Agunimon] is in this card's digivolution cards. If this card attacks and I use its <Your Turn> effect to digivolve into BT21-020 [Aldamon], is the digivolution cost reduced by a total of 2?
Yes, the play cost will be reduced by a total of 2.
Ruled Apr 4, 2025
This card attacks and I perform a security check on my opponent. If I then use this card's <Your Turn> effect to digivolve into a Digimon card with <Security Attack +1>, is another security check performed?
Yes, another security check is performed.
Ruled Apr 4, 2025
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Questions and answers are Bandai's official rulings, collected and translated by the DigimonCardGame Wiki community and reused here under CC BY-SA. Card names and card text are © their respective publishers; Combalo is not affiliated with Bandai.