The battle area currently contains this card with digivolution cards and a Marcus Damon that is being treated as a Digimon due to this card's effect.My opponent activates the effect "1 of your opponent's Digimon gets -X000 DP until the end of turn. Then, <De-Digivolve X> 1 of their Digimon" and reduces Marcus Damon's DP to 0 then deletes this card with <De-Digivolve>.At this time, the Marcus Damon has lost its DP and is no longer treated as a Digimon due to this card's deletion. Is it deleted upon a rule check?
Show ruling
No, it is not deleted. The Marcus Damon loses its DP and is no longer being treated as a Digimon before a rule check occurs. Therefor, it is no longer subject to the rule "Digimon with 0 DP are destroyed" when a rule check occurs, and it is not destroyed.
Source: BT25-104 ShineGreymon: Burst Mode/Final Shining Burst