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

Can I choose cards so that the combined play cost is lower than the play cost of 1 of my Digimon with [Greymon] in their name on purpose with this card's effect?
Yes, you can.
Ruled Mar 28, 2024
Can I attack with one of my Digimon with [Greymon] that is suspended or was played this turn with this card's effect?
No, you can't. This card's effect does not allow you to attack with Digimon that can't attack.
Ruled Mar 28, 2024
Does the <When Attacking> effect of my Digimon with [Greymon] activates when it attacks with this card's effect?
Yes, it activates.
Ruled Mar 28, 2024
Can I attack one of my opponent's Digimon instead of a player with one of my Digimon with [Greymon] that has the effect "This Digimon can also attack your opponent's unsuspended Digimon" with this card's effect?
No, you can't. This card's effect only allows you to attack a player.
Ruled Mar 28, 2024
Got a line that uses Hades Force? 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.