La dent s'obtient aléatoirement en ramassant du sable

init.lua

@@ -397,14 +397,26 @@ minetest.register_craft({
 })
 
 --teeth from sand, maybe fossilised?
-minetest.register_craft({
-	output = 'witchcraft:tooth 1',
-	recipe = {
-		{'default:desert_sand'},
+minetest.override_item("default:sand", {
+  drop = {
+	  max_items = 1,
+	  items = {
+		  {
+			  items = {"witchcraft:tooth"},
+			  rarity = 30,
+		  },
+		  {
+			  items = {"default:sand"},
+		  }
+	  }
   },
 })
 
-
+minetest.register_craft({
+	type = "shapeless",
+	output = "default:sand",
+	recipe = {"witchcraft:tooth"},
+})
 
 --splash potions crafting