diff --git a/android/assets/jsons/Civ V - Gods & Kings/Terrains.json b/android/assets/jsons/Civ V - Gods & Kings/Terrains.json
index f99984e17d..cd8582efd8 100644
--- a/android/assets/jsons/Civ V - Gods & Kings/Terrains.json	
+++ b/android/assets/jsons/Civ V - Gods & Kings/Terrains.json	
@@ -448,7 +448,7 @@
 		"occursOn": ["Grassland"],
 		"uniques": ["Must be adjacent to [1] to [5] [Coast] tiles",
 			"Must be adjacent to [1] [Mountain] tiles",
-			"Neighboring tiles except [Mountain] will convert to [Coast]"],
+            "Neighboring tiles will convert to [Coast] <in tiles without [Mountain]>"],
 		"turnsInto": "Mountain",
 		"impassable": true,
 		"unbuildable": true,
diff --git a/android/assets/jsons/Civ V - Vanilla/Terrains.json b/android/assets/jsons/Civ V - Vanilla/Terrains.json
index 0f54f7f484..cee007555c 100644
--- a/android/assets/jsons/Civ V - Vanilla/Terrains.json	
+++ b/android/assets/jsons/Civ V - Vanilla/Terrains.json	
@@ -448,7 +448,7 @@
 		"occursOn": ["Grassland"],
 		"uniques": ["Must be adjacent to [1] to [5] [Coast] tiles",
 			"Must be adjacent to [1] [Mountain] tiles",
-			"Neighboring tiles except [Mountain] will convert to [Coast]"],
+            "Neighboring tiles will convert to [Coast] <in tiles without [Mountain]>"],
 		"turnsInto": "Mountain",
 		"impassable": true,
 		"unbuildable": true,
diff --git a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
index aa611e60c5..999316b9e5 100644
--- a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
+++ b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
@@ -538,7 +538,7 @@ enum class UniqueType(
     NaturalWonderConvertNeighbors("Neighboring tiles will convert to [baseTerrain/terrainFeature]", UniqueTarget.Terrain, flags = UniqueFlag.setOfHiddenToUsers,
         docDescription = "Supports conditionals that need only a Tile as context and nothing else, like `<with [n]% chance>`, and applies them per neighbor." +
             "\nIf your mod renames Coast or Lakes, do not use this with one of these as parameter, as the code preventing artifacts won't work."),
-    // The "Except [terrainFilter]" could theoretically be implemented with a conditional
+    @Deprecated("As of 4.12.19", ReplaceWith("Neighboring tiles will convert to [baseTerrain/terrainFeature] <in tiles without [simpleTerrain]>"))
     NaturalWonderConvertNeighborsExcept("Neighboring tiles except [simpleTerrain] will convert to [baseTerrain/terrainFeature]", UniqueTarget.Terrain, flags = UniqueFlag.setOfHiddenToUsers,
         docDescription = "Supports conditionals that need only a Tile as context and nothing else, like `<with [n]% chance>`, and applies them per neighbor." +
             "\nIf your mod renames Coast or Lakes, do not use this with one of these as parameter, as the code preventing artifacts won't work."),