Unique Skill "Great Sage" is a Weiß Schwarz card from 転生したらスライムだった件 TSK/S70-096. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Card type
Event
Side
Schwarz
Color
Blue
Level
1
Cost
1
Neo-Standard
That Time I Got Reincarnated as a Slime
Card Text
Put this card into your memory.
【AUTO】 Memory At the beginning of your climax phase, if this card is in your memory, choose 1 of your characters with "Rimuru(リムル)" in its card name, and that character gets +2500 power until end of turn.