diff --git a/src/engine/wpakpowers/WpakPowerManager.java b/src/engine/wpakpowers/WpakPowerManager.java
index 32bc4ab4..aace3ce3 100644
--- a/src/engine/wpakpowers/WpakPowerManager.java
+++ b/src/engine/wpakpowers/WpakPowerManager.java
@@ -29,6 +29,7 @@ import org.pmw.tinylog.Logger;
 
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.concurrent.ConcurrentHashMap;
 
 import static engine.math.FastMath.sqr;
 
@@ -332,8 +333,17 @@ public class WpakPowerManager {
             if (effect == null)
                 continue;
 
-            //TODO add in effect application
+            // New entry for this power effect?
+
+            if (target._effects.containsKey(effect) == false)
+                target._effects.put(effect, new ConcurrentHashMap<>());
+
+            // Write modifier values
+
+            for (ModifierEntry modifierEntry : effect.mods)
+                target._effects.get(effect).put(modifierEntry, rank);
         }
+
     }
 
     public static void sendPowerMsg(PlayerCharacter playerCharacter, int type, PerformActionMsg msg) {