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

Can I place 1 each of [Sanzomon], [Gokuumon], and [Cho-Hakkaimon] for this card's DigiXros requirements?
No, you can't. You can place 1 [Sanzomon], 1 [Gokuumon], or 1 [Cho-Hakkaimon] under this card.
Ruled Jun 28, 2024
If DigiXrosing when this card would be played, can I also activate the part after "if DigiXrosing" in this card's <On Play> <When Attacking> effect when this Digimon attacks?
No, you can't. The "if DigiXrosing" part of the effect can only activate when DigiXrosing.
Ruled Jun 28, 2024
Can I use this card's <On Play> <When Attacking> effect or inherited effect to give 1 of my Digimon <Security Attack -1>?
Yes, that's correct.
Ruled Jun 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 Jun 28, 2024
Does this card's <All Turns> effect trigger when this card is in the battle area and would be placed in another Digimon’s digivolution cards for a DigiXros?
Yes, it triggers. Because a Digimon also leaves the battle area when it's placed in digivolution cards for a DigiXros, the effect triggers and activates.
Ruled Jun 28, 2024
I chose this card as a target for a DigiXros. Then, I used this card's <All Turns> effect to return a yellow Digimon card to the hand. At such times, can the card returned to the hand be placed for the DigiXros?
No, it can't. You must choose all of the cards to place when you declare the DigiXros. After choosing them, the chosen cards are placed under the card to DigiXros. This card's <All Turns> effect triggers and activates when the chosen cards would be placed, so after activation has occurred, you can't re-do your choices for the cards to place for the DigiXros.
Ruled Jun 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.