4 official rulings from Bandai, last ruled Nov 1, 2024. Straight answers to how this card actually resolves.

Does this card's digivolution requirement where it can digivolve from a Tamer mean that the Tamer that will become a digivolution card is treated as a Digimon when it digivolves?
No, it digivolves from the Tamer as-is.
Ruled Nov 1, 2024
When a Tamer would digivolve using this card's digivolution requirement, is it considered a Digimon that would digivolve?
No, it isn't considered a Digimon that would digivolve. When a Tamer would digivolve using this card's digivolution requirement, "when a Digimon would digivolve" effects don't trigger.
Ruled Nov 1, 2024
When a Tamer digivolves using this card's digivolution requirement, is it considered a Digimon that digivolves?
No, it isn't considered a Digimon that digivolves. When a Tamer digivolves using this card's digivolution requirement, "when a Digimon digivolves" effects don't trigger.
Ruled Nov 1, 2024
My opponent has 1 red and blue Digimon and 1 red and yellow Tamer. How many cards do I trash from the tops of both players' decks when this card's <On Play> <When Digivolving> effect activates?
3 cards. In this case, there are 3 colors (red, blue, and yellow) in your opponent's Digimon and Tamers, therefore you trash 3 cards from the tops of both players' decks.
Ruled Nov 1, 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.