diff --git a/forge-gui/src/main/java/forge/planarconquest/ConquestUtil.java b/forge-gui/src/main/java/forge/planarconquest/ConquestUtil.java
index 0d309ff71f8..8a2256eb8c8 100644
--- a/forge-gui/src/main/java/forge/planarconquest/ConquestUtil.java
+++ b/forge-gui/src/main/java/forge/planarconquest/ConquestUtil.java
@@ -207,6 +207,7 @@ public class ConquestUtil {
     }
 
     public static enum AEtherFilter implements IHasSkinProp {
+        C (null, new ColorFilter(MagicColor.COLORLESS), "Playable in {C}"),
         W (null, new ColorFilter(MagicColor.WHITE), "Playable in {W}"),
         U (null, new ColorFilter(MagicColor.BLUE), "Playable in {U}"),
         B (null, new ColorFilter(MagicColor.BLACK), "Playable in {B}"),
@@ -351,6 +352,7 @@ public class ConquestUtil {
     }
 
     public static final AEtherFilter[] COLOR_FILTERS = new AEtherFilter[] {
+        AEtherFilter.C,
         AEtherFilter.W,
         AEtherFilter.U,
         AEtherFilter.B,