Rulings
Q3: When this card's effect places Shoutmon in this Digimon's digivolution cards, what happens if Shoutmon has BT9-109 X Antibody in its digivolution cards?
It's not being trashed by the effect, it's being trashed because of the rules, so BT9-109 X Antibody does still get trashed.
Q4: When I activate the "When this card would be played" effect and place Shoutmon in this card's digivolution cards, can I first place cards for DigiXros and only then place Shoutmon?
No, you can't. DigiXros is performed after all ""would be played"" effects have activated. Therefore, you must first place Shoutmon in its digivolution cards for the effect and then place cards under the Shoutmon digivolution card for the DigiXros.
Q5: Shoutmon's digivolution cards are trashed when I place it in this Digimon's digivolution cards for the "When this card would be played" effect. Can I DigiXros with those trashed cards and place them in this Digimon's digivolution cards?
Yes, you can.
Q6: What does "∞ Digimon cards w/Xros Heart or Blue Flare trait & different card numbers" in this card's DigiXros requirements mean?
It means that you can DigiXros with as many cards as you like, as long as all the cards have the Xros Heart or Blue Flare trait and different card numbers.
Q7: This card's DigiXros requirements say "∞ Digimon cards," but is it still considered DigiXros if I place 0 cards?
No, it's not DigiXros if you don't place any cards.
Q8: If I place Shoutmon as a digivolution card for this card's "When you would play this card" effect, can I place another card with the same number as that Shoutmon as a digivolution card under this Digimon for this card's DigiXros?
Yes, you can. A Shoutmon placed as a digivolution card for this card's ""When you would play this card"" effect is not treated as placed by the DigiXros, so it is not included in this card's ""different card numbers"" DigiXros condition.
Data Sources
Lv.7 Shoutmon X7: Superior Mode BT12-112 SEC Mega | Data | Composite/Xros Heart/Blue Flare DigiXros -1: ∞ Digimon cards w/[Xros Heart] or [Blue Flare] trait & different card numbers When you would play this card from your hand, by placing 1 of your [Shoutmon] as a digivolution card under this Digimon, reduce its play cost by 1 and place the cards in your trash as digivolution cards for a DigiXros.[On Play] Return all of the digivolution cards under 1 of your opponent's Digimon to their owner's deck in any order, and return that Digimon to the bottom of its owner's deck.[Your Turn] All of your opponent's [Security] effects on Option cards don't activate.
Lv.7 Shoutmon X7: Superior Mode BT12-112 SEC Mega | Data | Composite/Xros Heart/Blue Flare DigiXros -1: ∞ Digimon cards w/[Xros Heart] or [Blue Flare] trait & different card numbers When you would play this card from your hand, by placing 1 [Shoutmon] as a digivolution card of this Digimon, reduce the play cost by 1 and you may place cards in your trash as digivolution cards for a DigiXros. [On Play] Return all of the digivolution cards of 1 of your opponent's Digimon to the bottom of its owner's deck in any order, and return that Digimon to the bottom of its owner's deck. [Your Turn] All of your opponent's [Security] effects on Option cards don't activate.
Lv.7 Shoutmon X7: Superior Mode BT12-112 SEC mega | Data | Composite/Xros Heart/Blue Flare When you would play this card, by placing 1 [Shoutmon] as a digivolution card under this Digimon, reduce the cost by 1 and you may place cards in your trash as digivolution cards for a DigiXros. [On Play] Return all of the digivolution cards of 1 of your opponent's Digimon to the bottom of its owner's deck, and return that Digimon to the bottom of its owner's deck. [Your Turn] All of your opponent's [Security] effects on Option cards don't activate. DigiXros -1: ∞ Digimon cards w/[Xros Heart] or [Blue Flare] trait & different card numbers
Lv.7 シャウトモンX7:スペリオルモード BT12-112 SEC 究極体 | データ種 | 合成型/クロスハート/ブルーフレア このカードを登場させるとき、「シャウトモン」1体をこのデジモンの進化元に置くことで、支払う登場コスト-1し、自分のトラッシュのカードもデジクロスで進化元に置ける。 【登場時】相手のデジモン1体の進化元全てを好きな順番でデッキの下に戻し、そのデジモンをデッキの下に戻す。 【自分のターン】相手のオプションカードの【セキュリティ】効果全ては発揮しない。