Rulings
Q1: When I DNA digivolve to this card and return a Digimon card of a different Lv. from the opponent's trash to the top of the deck by this card's On Play When Digivolving effect, can I return a Digimon card to the top of the deck?
No, you cannot. Only Digimon cards can be returned.
Q2: When I DNA digivolve to this card and this card's On Play When Digivolving effect returns a Digimon card with a different Lv. from the opponent's trash to the top of the deck, can I return a Digimon card with no Lv. to the top of the deck?
No, you cannot. You can only return Digimon cards with Lv. Digimon cards with "Lv.-" cannot be returned.
Q3: When this card's On Deletion effect returns "Chimeramon" and "Mugendramon" from my Trash to the bottom of my Deck, can I return "Chimeramon" and "Mugendramon" from this card's digivolution card to the bottom of my Deck?
Yes, the card can be returned to the bottom of the deck, since the card's digivolved card was placed in the trash at the same time it was deleted.
Q4: Can the condition for this card's On Deletion effect be to return only one of either "Kimeramon" or "Machinedramon" from my trash?
No, you cannot. The conditions of the By effect cannot be performed only in part. For the condition of this On Deletion effect, both 1 "Kimeramon" and 1 "Machinedramon" must be returned.
Data Sources
Lv.7 Millenniummon BT18-019 SR Mega | Virus | Composite [DNA Digivolve] [Kimeramon] + [Machinedramon]: Cost 0 [On Play] [When Digivolving] Delete 1 of your opponent's Digimon. Then, if DNA digivolving, by returning 1 of each Digimon card with different levels from your opponent's trash to the top of the deck, gain 1 memory for each returned card. [On Deletion] By returning 1 [Kimeramon] and 1 [Machinedramon] from your trash to the bottom of the deck, you may play 1 [Millenniummon] from your trash without paying the cost. DigiXros -2: [Kimeramon]×[Machinedramon]
Lv.7 Millenniummon BT18-019 SR Mega | Virus | Composite [DNA Digivolve] [Kimeramon] + [Machinedramon]: Cost 0 [On Play] [When Digivolving] Delete 1 of your opponent's Digimon. Then, if DNA digivolving, by returning 1 of each Digimon card with different levels from your opponent's trash to the top of the deck, gain 1 memory for each returned card. [On Deletion] By returning 1 [Kimeramon] and 1 [Machinedramon] from your trash to the bottom of the deck, you may play 1 [Millenniummon] from your trash without paying the cost. DigiXros -2: [Kimeramon]×[Machinedramon]
Lv.7 Millenniummon BT18-019 SR Mega | Virus | Composite [DNA Digivolve] [Kimeramon]+[Machinedramon]: Cost 0 [On Play] [When Digivolving] Delete 1 of your opponent's Digimon. Then, if DNA digivolving, by returning 1 of each Digimon card with different levels from your opponent's trash to the top of the deck, gain 1 memory for each card returned. [On Deletion] By returning 1 [Kimeramon] and 1 [Machinedramon] from your trash to the bottom of the deck, you may play 1 [Millenniummon] from your trash without paying the cost. DigiXros -2: [Kimeramon]×[Machinedramon]
Lv.7 ミレニアモン BT18-019 SR 究極体 | ウィルス種 | 合成型 〔ジョグレス〕「キメラモン」+「ムゲンドラモン」:コスト0 【登場時】【進化時】相手のデジモン1体を消滅させる。その後、ジョグレス進化していたなら、相手のトラッシュから、Lv.の異なるデジモンカード1枚ずつをデッキの上に戻すことで、戻した1枚ごとに、メモリー+1。 【消滅時】自分のトラッシュから、「キメラモン」と「ムゲンドラモン」1枚ずつをデッキの下に戻すことで、自分のトラッシュから、「ミレニアモン」1枚をコストを支払わずに登場できる。 「キメラモン」×「ムゲンドラモン」