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

How do I activate this card's <Hand> <Main Timing> effect?
Effects with the <Hand> icon can activate when their card is revealed from the hand. This effect can activate during the main phase when you reveal this card from the hand and process the effect.
Ruled Nov 1, 2024
Can I use this card's <Hand> <Main Timing> effect to place just 1 [Kumamon] or [Korikakumon] from my trash under my Tamer?
No, you can't. A "by doing X" condition can't be met if only some of the required actions are performed. In order for the conditions for this card's <Hand> <Main Timing> effect to be met, you must place 1 [Kumamon] and 1 [Korikakumon] under your Tamer.
Ruled Nov 1, 2024
Does this card's <Hand> <Main Timing> effect 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 <Hand> <Main Timing> effect, 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 <Hand> <Main Timing> effect, "when a Digimon would digivolve" effects don't trigger.
Ruled Nov 1, 2024
When a Tamer digivolves using this card's <Hand> <Main Timing> effect, is it considered a Digimon that digivolves?
No, it isn't considered a Digimon that digivolves. When a Tamer digivolves using this card's <Hand> <Main Timing> effect, "when a Digimon digivolves" effects don't trigger.
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.