Q1: Can I place either my Digimon or Tamer or an opponent's Digimon or Tamer as the top or bottom security card for this card's When Digivolving effect?
Yes, you can place it as the top or bottom security card.
Q2: Can I activate Recovery +1 ⟪Deck⟫ even when not DNA digivolving with this card's 1st When Digivolving effect?
Yes, you can activate Recovery +1 ⟪Deck⟫.
Lv.6 Mastemon P-187 P Mega | Vaccine | Angel [DNA Digivolve] Purple Lv.5 + yellow Lv.5: Cost 0 Stack the 2 specified Digimon and digivolve unsuspended. [When Digivolving] <Recovery +1 ≪Deck≫>. Then, if DNA digivolving, by placing 1 other Digimon or Tamer as the top or bottom security card, trash your opponent's top security card. [When Digivolving] [When Attacking] [Once Per Turn] By trashing your top security card, you may play 1 purple or yellow Digimon card with 6000 DP or less from your hand or trash without paying the cost.
Lv.6 Mastemon P-187 P Mega | Vaccine | Angel [DNA Digivolve] Purple Lv.5 + yellow Lv.5: Cost 0 Stack the 2 specified Digimon and digivolve unsuspended. [When Digivolving] <Recovery +1 ≪Deck≫>. Then, if DNA digivolving, by placing 1 other Digimon or Tamer as the top or bottom security card, trash your opponent's top security card. [When Digivolving] [When Attacking] [Once Per Turn] By trashing your top security card, you may play 1 purple or yellow Digimon card with 6000 DP or less from your hand or trash without paying the cost.
Lv.6 Mastemon P-187 P Mega | Vaccine | Angel [DNA Digivolve] Purple Lv.5 + Yellow Lv.5: Cost 0 [When Digivolving] <Recovery +1 (Deck)>. Then, if DNA digivolving, by placing 1 other Digimon or Tamer as the top or bottom security card, trash your opponent's top security card. [When Digivolving] [When Attacking] {{OncePerTurn}} By trashing your top security card, you may play 1 {{Colour|purple}} or {{Colour|yellow}} Digimon card with 6000 DP or less from your hand or trash without paying the cost.