diff --git a/regions/frozen.json b/regions/frozen.json
index 28b27dff..8622ba52 100644
--- a/regions/frozen.json
+++ b/regions/frozen.json
@@ -20,7 +20,7 @@
     "riverBiomes": ["frozen/sea/river"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 750
+        "rarity": 500
     }],
     "spotBiomes": [{
         "biome": "frozen/vander",
@@ -34,7 +34,7 @@
         "zoom": 4.77,
         "fracture": {
             "multiplier": 240,
-            "style": "IRIS",
+            "style": "NOWHERE",
             "zoom": 5
         }
     },
diff --git a/regions/hot.json b/regions/hot.json
index dfd256ff..1f3cfc80 100644
--- a/regions/hot.json
+++ b/regions/hot.json
@@ -3,10 +3,6 @@
     "color": "#E7D900",
     "landBiomes": [
         "hot/desert-dunes",
-        "hot/desert-dunes",
-        "hot/desert-dunes",
-        "hot/desert-dunes-red",
-        "hot/desert-dunes-red",
         "hot/desert-dunes-red",
         "savanna/forest",
         "savanna/savanna",
@@ -36,7 +32,7 @@
         "zoom": 4.77,
         "fracture": {
             "multiplier": 240,
-            "style": "IRIS",
+            "style": "NOWHERE",
             "zoom": 5
         }
     },
@@ -49,7 +45,7 @@
     }],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 750
+        "rarity": 500
     }],
     "biomeImplosionRatio": 0.25,
     "deposits": [
diff --git a/regions/mushroom.json b/regions/mushroom.json
index a9387d9c..2cae7051 100644
--- a/regions/mushroom.json
+++ b/regions/mushroom.json
@@ -11,7 +11,7 @@
     "shoreBiomes": ["mushroom/shore/beach"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 750
+        "rarity": 500
     }],
     "seaBiomes": ["mushroom/sea/ocean"],
     "caveBiomes": [
@@ -42,7 +42,7 @@
         "zoom": 4.77,
         "fracture": {
             "multiplier": 240,
-            "style": "IRIS",
+            "style": "NOWHERE",
             "zoom": 5
         }
     },
diff --git a/regions/swamp.json b/regions/swamp.json
index 79ccc48a..25e7968b 100644
--- a/regions/swamp.json
+++ b/regions/swamp.json
@@ -12,7 +12,7 @@
     "shoreBiomes": ["swamp/shore/beach"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 750
+        "rarity": 500
     }],
     "seaBiomes": [
         "swamp/sea/ocean",
@@ -27,7 +27,7 @@
         "zoom": 4.77,
         "fracture": {
             "multiplier": 240,
-            "style": "IRIS",
+            "style": "NOWHERE",
             "zoom": 5
         }
     },
diff --git a/regions/temperate.json b/regions/temperate.json
index 958bca28..52b461fe 100644
--- a/regions/temperate.json
+++ b/regions/temperate.json
@@ -30,7 +30,7 @@
     "riverBiomes": ["temperate/sea/river"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 750
+        "rarity": 500
     }],
     "ENTITY_SPAWNS": "ALL ENTITY SPAWNS FOR THE REGION",
     "entitySpawners": [
diff --git a/regions/tropical.json b/regions/tropical.json
index f3afde58..e0b17ae4 100644
--- a/regions/tropical.json
+++ b/regions/tropical.json
@@ -35,13 +35,13 @@
         "zoom": 4.77,
         "fracture": {
             "multiplier": 240,
-            "style": "IRIS",
+            "style": "NOWHERE",
             "zoom": 5
         }
     },
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 750
+        "rarity": 500
     }],
     "deposits": [{
         "minHeight": 25,
diff --git a/regions/tundra.json b/regions/tundra.json
index 0f7f1fae..c04a7386 100644
--- a/regions/tundra.json
+++ b/regions/tundra.json
@@ -26,7 +26,7 @@
     "seaBiomes": ["mountain/sea/river"],
     "jigsawStructures": [{
         "structure": "murky_stronghold",
-        "rarity": 750
+        "rarity": 500
     }],
     "caveBiomes": [
         "cave/tundra-cavern",
@@ -61,7 +61,7 @@
         "zoom": 4.77,
         "fracture": {
             "multiplier": 240,
-            "style": "IRIS",
+            "style": "NOWHERE",
             "zoom": 5
         }
     },