Rulings
Q1: Can this card's inherited effect delete an opponent's Sukamon to prevent itself from being deleted?
Yes, you can.
Q2: I have Sukamon A and Sukamon B with this card in their digivolution cards in the battle area. When Sukamon A would be deleted, I attempted to delete Sukamon B using this card's inherited effect. On the other hand, when Sukamon B would be deleted, I attempted to delete Sukamon A using this card's inherited effect. At such times, can Sukamon A activate this card's inherited effect again?
No, it can't be activated. Until the processing for the 1st activation has resolved, only 1 activation is possible for each immediate-type effect. In your case, until the deletion of the 1st only Sukamon A is resolved, only 1 activation is possible for each "when ... would" effect, therefore the effect that has already activated for Sukamon A can't be activated again.
Q3: If this card's On PlayWhen Digivolving effect activates on an opponent's Digimon with a "The name of this card/Digimon is also treated as XX" or "This Digimon is also treated as another color" effect, what happens to my opponent's Digimon?
The Digimon will be changed to a white Digimon with an original name of Sukamon, but it does not lose the "also treated as" effect, so it is also treated as the name or color from that effect as well as a white Sukamon.
Q4: If this card's On Play When Digivolving effect is activated on an my opponent's ST12-13 Sistermon Ciel, BT6-084 Sistermon Ciel or BT7-083 Sistermon Ciel (Awakened), what happens to that Digimon?
The name of the cards ST12-13 Sistermon Ciel and BT6-084 Sistermon Ciel is also treated as Sistermon Noir, and the name of the card BT7-083 Sistermon Ciel (Awakened) is also treated as Sistermon Noir (Awakened), but this is a game rule and not an effect, so if this card's On Play When Digivolving effect is activated in one of those cards, its name will be changed to Sukamon and its name will no longer be treated as Sistermon Noir or Sistermon Noir (Awakened).
Q5: What happens when this card's On PlayWhen Digivolving effect activates for a Digimon with "(Rule) Name: Also treated as XX" or "(Rule) Name: Treated as having XX"?
It remains as a white Digimon with 3000 DP and an original name of Sukamon. The gained effect is carried over even if the Digimon digivolves or one or more of its top cards are trashed.
Q6: Can the digivolution card's inherited effect cause the opponent's "Sukamon" to be deleted and not itself?
Yes, it is possible.
Q7: There are "Sukamon" A and "Sukamon" B in the Battle Area, both of which have this card as their digivolution card. When "Sukamon" A was about to delete, it tried to delete "Scamon" B by the digivolved effect of this card. On the other hand, when "Sukamon" B is deleted, you tried to delete "Scamon" A by the digivolved effect of this card. In this case, can "Sukamon" A activate this card's digivolution effect again?
No, it cannot be activated. Until the first occurrence of the first process is resolved, all "interrupting and activating effects" can be activated only once each. In this situation, until the first "Sukamon" A deletion is resolved, each "When" effect can only be activated once, so "Sukamon" A that has already been activated cannot be activated again.
Q8: "Change an opponent's Digimon to its original name "Sukamon", White, DP 3000." What is the effect?
This effect changes the original name of one opponent's Digimon to "Sukamon", its original color to white, and its original DP to 3000.
Q9: What happens if a card such as "BT15-035 Geremon", which has card information in <Overflow X>, is changed to the original name "Sukamon", white, DP3000 by the effect of this card?
The information of the card you have is also changed by <Rules>. For example, the original name of "BT15-035 Gelemon" is "Gelemon/Numemon" by <Overflow X>, but if the information of the original card is changed by this effect, the original name will be "Sukamon" only.
Q10: What happens to a card such as "EX1-005 Tyrannomon" that has been given card information by the effect of this card, but is changed to the original name "Sukamon", white, DP3000 by the effect of this card?
The information on the card obtained by the effect remains the same. For example, if the information on the original card EX1-005 Tyrannomon is changed, the original color will be white and the color will be white and green because the effect of EX1-005 Tyrannomon also treats it as green.
Q11: If a card whose original name is changed to "Sukamon", white, DP3000 is digivolved or stacked cards are trashed by De-Digivolve, what happens to the card's information?
The card also retains its original name "Sukamon", white, DP 3000. The effect given is carried over even if that one digivolved or the stacked cards are trashed.
Q12: What happens if a card with the original name "Sukamon", white, DP3000 is stacked cards are trashed by De-Digivolve, etc. and become tamers or Digitama cards?
The original name "Sukamon" - White - remains changed to DP3000, but the information on the card that it originally did not have cannot be changed. If the card becomes a tamer or a Digitama card and does not originally have DP, it will remain without DP.
Data Sources
Lv.5 KingSukamon BT11-043 R Ultimate | Virus | Mutant Digivolve: 3 from Lv.4 w/[Sukamon] in name[On Play] [When Digivolving] If your opponent has 16 or more cards in their trash, or you have 3 or more cards with [Sukamon] in their names in your trash, change 1 of your opponent's Digimon into a white Digimon with 3000 DP and an original name of [Sukamon] until the end of your opponent's turn.[When Attacking] For each other Digimon with [Sukamon] in its name in play, this Digimon gains <Security Attack +1> for the turn. --- Inherited: [All Turns] When this Digimon would be deleted, by deleting 1 other Digimon with [Sukamon] in its name, prevent that deletion.
Lv.5 KingSukamon BT11-043 R Ultimate | Virus | Mutant Digivolve: 3 from Lv.4 w/[Sukamon] in name [On Play] [When Digivolving] If your opponent has 16 or more cards in their trash, or you have 3 or more cards with [Sukamon] in their names in your trash, change 1 of your opponent's Digimon into a white Digimon with 3000 DP and an original name of [Sukamon] until the end of your opponent's turn. [When Attacking] For each other Digimon with [Sukamon] in its name in play, this Digimon gains <Security Attack +1> for the turn. --- Inherited: [All Turns] When this Digimon would be deleted, by deleting 1 other Digimon with [Sukamon] in its name, prevent that deletion.
Lv.5 KingSukamon BT11-043 R
Ultimate | Virus | Mutant
{{DigivolveFromArchetypes|3|4|Sukamon}}
[On Play] [When Digivolving] If your opponent has 16 or more cards in their trash, or you have 3 or more cards with [Sukamon] in their names in your trash, change 1 of your opponent's Digimon into a {{Colour|white}} Digimon with 3000 DP and an original name of [Sukamon] until the end of your opponent's turn.
[When Attacking] For each other Digimon with [Sukamon] in its name in play, this Digimon gains <Security A. +1> for the turn.
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Inherited: [All Turns] When this Digimon would be deleted, by deleting 1 other Digimon with [Sukamon] in its name, prevent that deletion.Lv.5 スカモン大王 BT11-043 R 完全体 | ウィルス種 | 突然変異型 【登場時】【進化時】相手のトラッシュが16枚以上あるか、自分のトラッシュに名称に「スカモン」を含むカードが3枚以上あるとき、次の相手のターン終了まで、相手のデジモン1体を元々の名称「スカモン」• 白• DP3000に変更する。 【アタック時】このターンの間、名称に「スカモン」を含む他のデジモン1体ごとに、このデジモンは≪セキュリティアタック+1≫を得る。 --- Inherited: 【お互いのターン】このデジモンが消滅するとき、名称に「スカモン」を含む他のデジモン1体を消滅させることで、消滅しない。