

Q1: What does this card's "On Deletion If your opponent has 1 or less memory, Draw 1" mean, exactly?
It means that you Draw 1 when the memory is at 1 through 10 on your side, 0, or 1 on your opponent's side at the timing when this Digimon is deleted.
Q2: If this card's On Deletion effect activates when my opponent has 1 memory, do both the Draw 1 and "gain 1 memory" effects activate?
Yes, both activate.
Lv.3 Candlemon BT15-069 C Rookie | Data | Flame [On Deletion] If your opponent has 1 or less memory, <Draw 1>. If your opponent has 1 or more memory, gain 1 memory. ---
Lv.3 Candlemon BT15-069 C Rookie | Data | Flame [On Deletion] If your opponent has 1 or less memory, <Draw 1>. If your opponent has 1 or more memory, gain 1 memory. --- -
Lv.3 Candlemon BT15-069 C rookie | Data | Flame [On Deletion] If your opponent has 1 or less memory, <Draw 1>. If your opponent has 1 or more memory, gain 1 memory.
Lv.3 キャンドモン BT15-069 C 成長期 | データ種 | 火炎型 【消滅時】メモリーが相手側の1以下なら、≪1ドロー≫。メモリーが相手側の1以上なら、メモリー+1。 ---