改竄される世界 is a Weiß Schwarz card from 劇場版 魔法少女まどか☆マギカ[新編]叛逆の物語 MM/W35-076. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Each player returns all cards in the waiting room to his or her deck. Each player shuffles his or her deck afterwards.