Armin: Optimistic is a Weiß Schwarz card from Attack On Titan: Final Season AOT/SX04-108. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When this card is placed on the stage from your hand, if you have another 《Corps》 character, this card gets +2000 power until end of turn. 【AUTO】 [(1) 【REST】 1 of your other 【STAND】 《Corps》 characters] During the turn that this card is placed on the stage from your hand, when this card's battle opponent becomes 【REVERSE】, you may pay the cost. If you do, search your deck for up to 1 《Corps》 character, reveal it to your opponent, put it into your hand, and shuffle your deck.