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

If the card chosen with this card's effect has a play cost of 5, can it delete up to 5 of my opponent's Digimon?
No. If the chosen card has a play cost of 5, choose a number of your opponent's Digimon whose total play cost add up to 5 or less and delete them.
Ruled Mar 28, 2024
When this card’s effect returns revealed cards to my opponent's deck, which player decides the order the cards are placed in and whether the cards are placed on the top or bottom of the deck?
The player that activated this effect chooses.
Ruled Mar 28, 2024
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