4 official rulings from Bandai, last ruled Jan 10, 2025. Straight answers to how this card actually resolves.

Can I use this card's <End Your Turn> effect to place Digi-Egg cards with the [Mineral]/[Rock] from my trash as digivolution cards?
Yes, you can.
Ruled Jan 10, 2025
Can I use this card's <When Digivolving> <When Attacking> effect to trash a total of 3 digivolution cards from my multiple different Digimon?
Yes, you can.
Ruled Jan 10, 2025
Can I trash just 2 digivolution cards for the conditions of this card's <When Digivolving> <When Attacking> effect?
No, you can't. A "by doing X" condition can't be met if only some of the required actions are performed. The conditions for this <When Digivolving> <When Attacking> effect require you to trash the specified number of digivolution cards.
Ruled Jan 10, 2025
Can I activate this card's <End Your Turn> effect but choose to not to place cards with the [Mineral]/[Rock] from my trash as this Digimon's bottom digivolution cards?
No, you can't. If this card's <End Your Turn> effect activates, you must place at least 1 card in digivolution cards. However, if you choose to not activate this effect, it won't activate and you don't place any cards in digivolution cards.
Ruled Jan 10, 2025
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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.