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

Does this card's inherited effect also activate if a single effect such as "<Draw 1>. Then, trash 1 card in the hand" trashes the same number of cards as the number that were added from the draw?
Yes, it activates.
Ruled Sep 6, 2024
Does this card's inherited effect activate when the hand increases from the digivolution bonus upon digivolution by an effect?
No, it doesn’t activate.
Ruled Sep 6, 2024
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