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

Instead of a Tamer card, can I digivolve this card onto a level 3 Digimon that meets the digivolution requirements?
Yes, you can.
Ruled Mar 28, 2024
If this card has a Tamer card in its digivolution cards, does that Tamer card’s <Security> effect become an inherited effect?
No, Tamer cards' <Security> effects aren't inherited effects. Some Tamer cards do have inherited effects, and those can be activated when such cards are placed in digivolution cards.
Ruled Mar 28, 2024
After this card's effect causes a Tamer card to end up in its digivolution cards, is that card affected by effects that trash digivolution cards?
Yes, it is. However, if the effect specifies Digimon cards, Digi-Egg cards, or any other type of card that isn't a Tamer card, it can't be targeted by that effect.
Ruled Mar 28, 2024
If I digivolve this card on top of a Tamer card, do I still get the digivolution bonus?
Yes, you do. Even if you digivolve onto a Tamer card, make sure to draw 1 card as the digivolution bonus.
Ruled Mar 28, 2024
Can I attack during the turn I digivolve this card on top of a Tamer card?
Yes. Digivolution doesn't count as “playing” a card, so you can attack that turn.
Ruled Mar 28, 2024
On the turn I have played a Tamer, I digivolve it into this Digimon. During that same turn, can this Digimon attack?
No. Digimon cannot attack on the turn they were played, and because the Tamer was played that turn, the restriction still applies to the Digimon that digivolved onto it.
Ruled Mar 28, 2024
If I've digivolved this card on top of a Tamer card and the Digimon is deleted, what happens to the Tamer card?
It’s trashed.
Ruled Mar 28, 2024
Can I choose an opponent's Digimon with a "can't attack" effect as the target when I activate this card's <When Digivolving> effect?
Yes, you can. However, in such cases the "can't attack" effect prevents making the attack.
Ruled Mar 28, 2024
What happens if this card's <When Digivolving> effect activates twice and 2 of my opponent's Digimon gain the "<Start Your Main> Attack with this Digimon" effect?
At the start of your opponent's main phase, the effects gained from this card's effect are triggered at the same time, and your opponent determines which one activates first. After effects such as <When Attacking> have activated, and before the counter timing occurs, it is time to activate the effect of the 2nd Digimon that was pending activation. However, since the 1st Digimon is already attacking, the effect ends without an attack made. As a result, only the Digimon whose effect was activated first can attack.
Ruled Mar 28, 2024
What happens if this card's <When Digivolving> effect is activated on an opponent's Digimon with an "<Opp Turn> This Digimon isn't affected by your opponent’s effects" effect?
You can still choose a "this Digimon isn't affected by your opponent’s effects" Digimon as a target for the effect. As soon as it becomes your opponent's turn, that opposing Digimon loses the "this Digimon isn't affected by your opponent’s effects" effect and is affected by this card's effect. As a result, the attack occurs at the start of the main phase.
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.