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

If [Kiriha Aonuma] is among the cards revealed by this card's effect, can it be played?
Yes, that's correct.
Ruled Mar 28, 2024
Can this card's effect add fewer than 2 cards to my hand if it reveals fewer than 2 cards with the [Blue Flare] among the 6 revealed cards?
Yes, you can add 1 card if only 1 card is revealed.
Ruled Mar 28, 2024
If there aren't 2 other Digimon cards with the [Blue Flare] among the six revealed cards, can I still play [Kiriha Aonuma] from among the revealed cards?
No. For this card's effect you reveal cards, add 2 cards with the [Blue Flare] among them to your hand, then play 1 [Kiriha Aonuma] among them. Therefore, if there are 2 or fewer cards with the [Blue Flare] including [Kiriha Aonuma] among the revealed cards, you can't play [Kiriha Aonuma] because you would have to add it to your hand.
Ruled Mar 28, 2024
This card's effect reveals 6 cards. If both cards with the [Blue Flare] and a [Kiriha Aonuma] are among the cards revealed, can I choose to only activate the effect that adds the cards to my hand and not play [Kiriha Aonuma], or the other way around?
No, if you perform any of this effect you must perform as much of it as possible, so if both cards with the [Blue Flare] and a [Kiriha Aonuma] are among the 3 cards revealed, you must perform both "add [...] to your hand" and "play 1 [Kiriha Aonuma]," or you must choose to perform neither.
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.