Minecraft wiki entry for Crossbow, associated text: Piglins have a chance of wielding a crossbow upon spawning, and they also have a small chance (8.5%) of dropping a loaded or unloaded crossbow of random durability when killed; this rate increases by 1% per level of Looting: 9.5% with Looting I, 10.5% with Looting II and 11.5% with Looting III. It can rarely (10% chance) be enchanted at level 5–19 regardless of being enchanted when spawned.