diff --git a/Patches/Content/CustomEnums.cs b/Patches/Content/CustomEnums.cs
index b0efd7c3..0f223858 100644
--- a/Patches/Content/CustomEnums.cs
+++ b/Patches/Content/CustomEnums.cs
@@ -53,6 +53,14 @@ public KeywordPropertiesAttribute(AutoKeywordPosition position, bool richKeyword
 
     public AutoKeywordPosition Position { get; }
     public bool RichKeyword { get; }
+
+    /// <summary>
+    /// The pool whose energy icon the keyword's tooltip should use, e.g. typeof(MyCardPool).
+    /// Only relevant for rich keywords whose description contains energy icons.
+    /// If not supplied, the icon is resolved from the character being played, which fails outside of a run
+    /// (in the card library the tooltip falls back to the colorless icon).
+    /// </summary>
+    public Type? Pool { get; set; }
 }
 
 public enum AutoKeywordPosition
@@ -71,7 +79,12 @@ public readonly struct KeywordInfo(string key)
         public readonly string Key = key;
         public required AutoKeywordPosition AutoPosition { get; init; }
         public required bool RichKeyword { get; init; }
-        
+
+        /// <summary>
+        /// Pool supplying the energy icon for this keyword's tooltip. Null if the keyword did not declare one.
+        /// </summary>
+        public Type? PoolType { get; init; }
+
         public static implicit operator string(KeywordInfo info) => info.Key;
     }
 
@@ -315,7 +328,8 @@ static void FindAndGenerate()
                 CustomKeywords.KeywordIDs.Add((int) key, new(keywordId)
                 {
                     AutoPosition = autoPosition,
-                    RichKeyword = poolAttribute?.RichKeyword ?? true
+                    RichKeyword = poolAttribute?.RichKeyword ?? true,
+                    PoolType = poolAttribute?.Pool
                 });
                 continue;
             }
diff --git a/Patches/Localization/CustomTooltips.cs b/Patches/Localization/CustomTooltips.cs
index 3bea90c7..bcd94121 100644
--- a/Patches/Localization/CustomTooltips.cs
+++ b/Patches/Localization/CustomTooltips.cs
@@ -1,8 +1,10 @@
 using BaseLib.Patches.Content;
 using HarmonyLib;
 using MegaCrit.Sts2.Core.Entities.Cards;
+using MegaCrit.Sts2.Core.Helpers;
 using MegaCrit.Sts2.Core.HoverTips;
 using MegaCrit.Sts2.Core.Localization;
+using MegaCrit.Sts2.Core.Models;
 
 namespace BaseLib.Patches.Localization;
 
@@ -23,13 +25,26 @@ public static bool CustomKeyword(CardKeyword keyword, ref IHoverTip __result)
                 if (info.RichKeyword)
                 {
                     LocString description = keyword.GetDescription();
-                    description.Add("energyPrefix", "");
+                    description.Add("energyPrefix", GetEnergyPrefix(info));
                     __result = new HoverTip(keyword.GetTitle(), description);
                     return false;
                 }
             }
-            
+
             return true;
         }
+
+        /// <summary>
+        /// Resolve the keyword's energy icon from the pool it declared, the way the game resolves it for cards and
+        /// powers. An empty prefix makes EnergyIconsFormatter fall back to the character being played, which does not
+        /// exist outside of a run, so the tooltip would show the colorless icon in the card library.
+        /// </summary>
+        private static string GetEnergyPrefix(CustomKeywords.KeywordInfo info)
+        {
+            if (info.PoolType == null) return "";
+
+            AbstractModel? pool = ModelDb.GetByIdOrNull<AbstractModel>(ModelDb.GetId(info.PoolType));
+            return pool is IPoolModel ? EnergyIconHelper.GetPrefix(pool) : "";
+        }
     }
 }
\ No newline at end of file