Tweak gilded blackstone XP

src/main/resources/experience.yml

@@ -391,7 +391,7 @@ Experience_Values:
         Glowstone: 15
         Gold_Ore: 1300
         Nether_Gold_Ore: 1300
-        Gilded_Blackstone: 1300
+        Gilded_Blackstone: 200
         Terracotta: 30
         Iron_Ore: 900
         Lapis_Ore: 800