3 official rulings from Bandai, last ruled Mar 28, 2024. Straight answers to how this card actually resolves.

If one of the cards revealed from my deck by this card's <On Play> effect is a Tamer card or Option card with the [D-Brigade]/[DigiPolice], can I add that card to my hand?
Yes, you can.
Ruled Mar 28, 2024
Can this card's inherited effect activate when an opponent's effect would place a Digimon with this card in its digivolution cards in another of my Digimon's digivolution cards?
Yes, it can. This effect can interrupt the removal of a card from the battle area, therefore by deleting 1 of your other Digimon with the [D-Brigade], this card will be prevented from being placed in your other Digimon's digivolution cards.
Ruled Mar 28, 2024
What does this card's "When [...] would [...] leave the battle area" mean, exactly?
"When [...] would leave the battle area" refers to when this Digimon is placed in the trash, returned to the hand/deck, placed in the security stack, moved to the breeding area, or placed under another card.
Ruled Mar 28, 2024
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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.