Q1: Can I play "EX4-063 Henry Wong & Shu-Chong Wong" with the When Digivolving effect of this card?
No, I cannot.
Lv.4 Gargomon BT19-049 C Champion | Vaccine | Beastkin [When Digivolving] If you have 1 or fewer Tamers, you may play 1 [Henry Wong] from your hand without paying the cost. --- Inherited: [When Attacking] [Once Per Turn] Suspend 1 of your opponent's Digimon.
Lv.4 Gargomon BT19-049 C Champion | Vaccine [When Digivolving] If you have 1 or fewer Tamers, you may play 1 [Henry Wong] from your hand without paying the cost. --- Inherited: [When Attacking] [Once Per Turn] Suspend 1 of your opponent's Digimon.
Lv.4 ガルゴモン BT19-049 C 成熟期 | ワクチン種 | 獣人型 【進化時】自分のテイマーが1体以下なら、自分の手札から、「李健良」1枚をコストを支払わずに登場できる。 --- Inherited: 【アタック時】[ターンに1回]相手のデジモン1体をレストさせる。