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

Which effect activates first, an <On Play> <When Digivolving> effect on an opponent's Digimon that was played/digivolved, or this card's <All Turns> effect?
They trigger simultaneously, so the turn player activates their effect first.
Ruled Mar 28, 2024
What kinds of effects activated by my opponent will trigger this card's <All Turns> effect?
It will trigger at times such as when a Digimon is played by [BT5-092]/[Nokia Shiramine] or when a Digimon digivolves by [P-103 Offense Training]'s effect. It won't trigger for effects that aren't digivolution effects, such as [BT4-011]/[Agunimon]'s effect that treats a Tamer as a level 3 red Digimon or [BT6-060]/[Deputymon]'s effect that allows digivolution requirements to be ignored.
Ruled Jun 28, 2024
See these rulings play out in real lines, step by step.
Got a line that uses Imperialdramon: Dragon Mode? Map it in the builder and share it with a link.
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.