National Card Master: My Waste Cards Can Develop into Myths

[Shuangwen + Urban Academy + National Card Master + Wasted Card Cultivation + Ecological Farming + No Female Protagonist + New System] In the era of national card masters, Jiang Yan failed to awaken three times in a row and could only bind a useless card that was used by the school as a foothold - [Abandoned Courtyard]. But when he entered the card, he realized that everything in the courtyard was real. Dry wells will dry up, creatures will be injured, and they cannot be resummoned after death. Fortunately, this courtyard can accommodate other incomplete cards, allowing the life in the discarded cards to come back to life! Injured gray rats search for cracks, dead moss eats away pollution, and rust beetles decompose waste stuck shells. When different life forms form symbiosis, they will evolve, reproduce, produce materials, and even condense into new cards! Others draw cards, buy cards, and synthesize cards. Jiang Yan, however, is picking up lives, repairing the ecology, and planting resources in the pile of discarded cards, turning the trash cards that no one cares about into myths! Until the courtyard completes its first advancement...