Troopmon (BT10-076) - Xros Encounter

[Opponent's Turn] [Once Per Turn] When an opponent plays a Digimon or Tamer, by trashing 1 of this Digimon's digivolution cards, gain 1 memory.
[On Deletion] [Save] (You may place this card under one of your Tamers.)

[Opponent's Turn] When an effect trashes this digivolution card, gain 1 memory.