Army of the Haunted (MZMU-EN002) - Maze of Muertos 1st Edition

If you control "Call of the Haunted" and this card is in your hand or GY: You can Special Summon this card. If this card is sent to the GY: You can target 1 "Call of the Haunted" in your GY; Set it. You can only use each effect of "Army of the Haunted" once per turn.