diff --git a/BaseClasses.py b/BaseClasses.py
index 53b69d30..46edeb5e 100644
--- a/BaseClasses.py
+++ b/BaseClasses.py
@@ -1264,6 +1264,10 @@ class Item:
     def trap(self) -> bool:
         return ItemClassification.trap in self.classification
 
+    @property
+    def excludable(self) -> bool:
+        return not (self.advancement or self.useful)
+
     @property
     def flags(self) -> int:
         return self.classification.as_flag()