SCP-012, A bad composition

The score is stored inside an Iron Box in a containment chamber that usually spawns underground in the overworld, and multiple SCP-012 instances can exist in a world. Opening the box by right-click, or by a redstone signal, draws nearby entities toward the sheet within about 3 blocks and applies Bleeding to players and to villagers and illagers alike. Players who stand close while the box stays open see a red screen, red particles and a heartbeat sound, and the effect can kill them. Breaking the box drops the sheet, and carrying it in the inventory also causes Bleeding. Safe handling requires opening the box with redstone under proper containment.

The mod also adds a new monster and changes how mobs spawn. Most mobs use spawning conditions that must be met before they appear, and some only spawn above Y level 60 or below it, while most spawn only in the overworld and not in other dimensions. A config file is included. The mod was built with MCreator, and the author recommends the newest versions, since 1.20.1 adds shields, better structure generation and custom villagers that 1.19.2 lacks. Geckolib is required.