diff --git a/src/Server/tier.cpp b/src/Server/tier.cpp
index 277d86ed61..fb8aae1d8a 100644
--- a/src/Server/tier.cpp
+++ b/src/Server/tier.cpp
@@ -324,7 +324,7 @@ void Tier::addBanParent(Tier *t)
     parent = t;
 }
 
-QString Tier::bannedReason(const PokeBattle &p) const {
+QString Tier::bannedReason(const PokeBattle &p, bool child) const {
     QString errorList = "";
     if(banPokes) {
         if(bannedPokes.contains(PokemonInfo::NonAestheticForme(p.num()))) {
@@ -361,9 +361,18 @@ QString Tier::bannedReason(const PokeBattle &p) const {
             errorList += QString("Ability %1 is banned, ").arg(AbilityInfo::Name(p.ability()));
         }
     }
-    if(errorList.length() >= 2) {
-        errorList.resize(errorList.size()-2);
-        errorList += ".";
+    if (parent) {
+        errorList += parent->bannedReason(p, true);
+    }
+    if(errorList.length() >= 2 && !child) {
+        QStringList errors = errorList.split(", ").toSet().toList(); //remove duplicates
+        QMutableListIterator<QString> i(errors);
+        while (i.hasNext()) {
+            if (i.next().isEmpty()) {
+                i.remove();
+            }
+        }
+        errorList = errors.join(", ") + ".";
     }
     return errorList;
 }
diff --git a/src/Server/tier.h b/src/Server/tier.h
index bd4e1a684a..d84b632001 100644
--- a/src/Server/tier.h
+++ b/src/Server/tier.h
@@ -100,7 +100,7 @@ class Tier : public TierNode
     void addBanParent(Tier *t);
 
     bool isBanned(const PokeBattle &p) const;
-    QString bannedReason(const PokeBattle &p) const;
+    QString bannedReason(const PokeBattle &p, bool child = false) const;
     bool isRestricted(const PokeBattle &p) const;
     bool isValid(const TeamBattle &t) const;
     bool exists(const QString &name);