diff --git a/jigsaw-structures/murky_stronghold.json b/jigsaw-structures/murky_stronghold.json
index 302312c7..ff58a247 100644
--- a/jigsaw-structures/murky_stronghold.json
+++ b/jigsaw-structures/murky_stronghold.json
@@ -1,9 +1,5 @@
 {
     "maxDepth": 6,
     "pieces": ["murky_stronghold/void/1"],
-    "lockY": 27,
-    "feature": {
-        "blockRadius": 5,
-        "entitySpawners": ["silverfish"]
-    }
+    "lockY": 30
 }
diff --git a/regions/frozen.json b/regions/frozen.json
index 26799ec3..d7270a61 100644
--- a/regions/frozen.json
+++ b/regions/frozen.json
@@ -20,7 +20,7 @@
     "riverBiomes": ["frozen/sea/frozen-parent-river"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 500
+        "rarity": 250
     }],
     "spotBiomes": [{
         "biome": "frozen/vander",
diff --git a/regions/hot.json b/regions/hot.json
index c1f383f9..6dcc99a9 100644
--- a/regions/hot.json
+++ b/regions/hot.json
@@ -45,7 +45,7 @@
     }],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 500
+        "rarity": 250
     }],
     "biomeImplosionRatio": 0.25,
     "deposits": [
diff --git a/regions/mushroom.json b/regions/mushroom.json
index a7a48a04..557e3e80 100644
--- a/regions/mushroom.json
+++ b/regions/mushroom.json
@@ -11,7 +11,7 @@
     "shoreBiomes": ["mushroom/shore/beach"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 500
+        "rarity": 250
     }],
     "seaBiomes": ["mushroom/sea/ocean"],
     "caveBiomes": [
diff --git a/regions/swamp.json b/regions/swamp.json
index 248ef899..0e08cfeb 100644
--- a/regions/swamp.json
+++ b/regions/swamp.json
@@ -12,7 +12,7 @@
     "shoreBiomes": ["swamp/shore/beach"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 500
+        "rarity": 250
     }],
     "seaBiomes": [
         "swamp/sea/ocean",
diff --git a/regions/temperate.json b/regions/temperate.json
index 53ef2d47..05b7a932 100644
--- a/regions/temperate.json
+++ b/regions/temperate.json
@@ -30,7 +30,7 @@
     "riverBiomes": ["temperate/sea/river"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 500
+        "rarity": 250
     }],
     "ENTITY_SPAWNS": "ALL ENTITY SPAWNS FOR THE REGION",
     "entitySpawners": [
diff --git a/regions/tropical.json b/regions/tropical.json
index 1b011f51..f9bd148e 100644
--- a/regions/tropical.json
+++ b/regions/tropical.json
@@ -42,7 +42,7 @@
     },
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 500
+        "rarity": 250
     }],
     "deposits": [{
         "minHeight": 25,
diff --git a/regions/tundra.json b/regions/tundra.json
index 993970f4..7c186b7a 100644
--- a/regions/tundra.json
+++ b/regions/tundra.json
@@ -26,7 +26,7 @@
     "seaBiomes": ["mountain/sea/river"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 500
+        "rarity": 250
     }],
     "caveBiomes": [
         "cave/tundra-cavern",