- 1 of your opponent's Digimon gets -2000 DP for the turn.
Rulings
Q1: Can I use "・1 of your opponent's Digimon gets -2000 DP for the turn" in this card's On Play When Digivolving effect to give the same Digimon -2000 DP multiple times?
Yes, you can.
Q2: Can I use "・1 of your opponent's Digimon gets -2000 DP for the turn" in this card's On Play When Digivolving effect to give different Digimon -2000 DP?
Yes, you can.
Q3: I activated "・1 of your opponent's Digimon gets -2000 DP for the turn" in this card's On Play When Digivolving effect once, and the DP of the opponent's Digimon was reduced to 0. Is that Digimon deleted before the effect activates 3 more times?
No, it isn't deleted yet. This card's On Play When Digivolving effect activates "・1 of your opponent's Digimon gets -2000 DP for the turn" 4 times, then all Digimon with 0 DP are deleted at the same timing.
Data Sources
Lv.6 Piedmon ACE EX8-062 SR Mega | Virus | Wizard/NSo [Digivolve] Lv.5 w/[NSo] trait: Cost 3 [Hand] [Counter] <Blast Digivolve> (Your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] Activate the effect below 4 times: • 1 of your opponent's Digimon gets -2000 DP for the turn. [All Turns] [Once Per Turn] When other Digimon are deleted, you may play 1 level 4 or lower [NSo] trait Digimon card from your trash without paying the cost.
Lv.6 Piedmon ACE EX8-062 SR Mega | Virus | Wizard/NSo [Digivolve] Lv.5 w/[NSo] trait: Cost 3 [Hand] [Counter] <Blast Digivolve> (Your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] Activate the effect below 4 times: • 1 of your opponent's Digimon gets -2000 DP for the turn. [All Turns] [Once Per Turn] When other Digimon are deleted, you may play 1 level 4 or lower [NSo] trait Digimon card from your trash without paying the cost. --- Inherited: <Overflow (-4)> (As this card moves from the field or under a card to an area other than those, lose 4 memory.)
Lv.6 Piedmon ACE EX8-062 SR Mega | Virus | Wizard/NSo [Digivolve] Lv.5 w/[NSo] trait: Cost 3 [Hand] [Counter] <Blast Digivolve> (One of your Digimon may digivolve into this card without paying the cost.) [On Play] [When Digivolving] Activate the effect below 4 times: • 1 of your opponent's Digimon gets -2000 DP for the turn. [All Turns] [Once Per Turn] When other Digimon are deleted, you may play 1 level 4 or lower [NSo] trait Digimon card from your trash without paying the cost. --- Inherited: <Overflow (-4)> (As this card moves from the battle area or under a card to another area, lose 4 memory.)
Lv.6 ピエモンACE EX8-062 SR 究極体 | ウィルス種 | 魔人型/NSo 特徴に「NSo」を持つLv.5:コスト3 [手札]【カウンター】≪ブラスト進化≫（自分のデジモンをこのカードにコストを支払わずに進化できる） 【登場時】【進化時】以下の効果を4回発揮する。 • ターン終了まで、相手のデジモン1体をDP-2000。 【お互いのターン】[ターンに1回]他のデジモンが消滅したとき、自分のトラッシュから、特徴に「NSo」を持つLv.4以下のデジモンカード1枚をコストを支払わずに登場できる。 --- Inherited: （エリアかカードの下から、それ以外の場所に送られる場合、メモリー-4）