Mournful Spirit is a Riftbound card. Compare listings from Singapore Riftbound sellers on CardJio, then jio them on WhatsApp.
[Deathknell][>] You may kill a unit or gear here. (When I die, get the effect.)
[绝念][>] 你可以选择摧毁此处的一个单位或装备。（当我被摧毁后，发动此效果。）