

Q1: When an effect plays an opponent's Digimon into the breeding area, does this card's inherited effect activate?
No, it doesn't activate.
Q2: Does this card's inherited effect also activate when one of my effects plays an opponent's Digimon?
Yes, it activates.
Lv.3 Gizamon BT15-068 C Rookie | Virus | Sea Animal [On Play] Until the end of your opponent's turn, 1 of their Digimon gains "[On Deletion] Lose 1 memory." --- [All Turns] [Once Per Turn] When an effect plays an opponent's Digimon, gain 1 memory.
Lv.3 Gizamon BT15-068 C Rookie | Virus | Sea Animal [On Play] Until the end of your opponent's turn, 1 of their Digimon gains "[On Deletion] Lose 1 memory." --- [All Turns] [Once Per Turn] When an effect plays an opponent's Digimon, gain 1 memory.
Lv.3 Gizamon BT15-068 C rookie | Virus | Sea Animal [On Play] Until the end of your opponent's turn, 1 of their Digimon gains "[On Deletion] Lose 1 memory." --- [All Turns] [Once Per Turn] When an effect plays an opponent's Digimon, gain 1 memory.
Lv.3 ギザモン BT15-068 C 成長期 | ウィルス種 | 水棲哺乳類型 【登場時】相手のターン終了まで、相手のデジモン1体に「【消滅時】メモリー-1。」の効果を与える。 --- 【お互いのターン】[ターンに1回]効果で相手のデジモンが登場したとき、メモリー+1。