グリーフシード
Grief Seed is a Weiß Schwarz card from 魔法少女まどか☆マギカ MM/W17-017. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【COUNTER】 Choose one of your characters, and that character gets +X power until end of turn. X is equal to 1000 multiplied by the number of 《Magic》 characters you have.