diff --git a/headers/functions/overlay29.h b/headers/functions/overlay29.h
index 9489412f..55355417 100644
--- a/headers/functions/overlay29.h
+++ b/headers/functions/overlay29.h
@@ -303,6 +303,7 @@ bool MonsterIsType(struct entity* entity, enum type_id type_id);
 bool IsTypeAffectedByGravity(struct entity* entity, enum type_id type_id);
 bool HasTypeAffectedByGravity(struct entity* entity, enum type_id type_id);
 bool CanSeeInvisibleMonsters(struct entity* entity);
+bool IsTacticSet(struct entity* entity, enum tactic_id tactic_id);
 bool HasDropeyeStatus(struct entity* entity);
 bool IqSkillIsEnabled(struct entity* entity, enum iq_skill_id iq_id);
 void UpdateIqSkills(struct monster* monster);
diff --git a/symbols/overlay29.yml b/symbols/overlay29.yml
index d241db35..3bd822cd 100644
--- a/symbols/overlay29.yml
+++ b/symbols/overlay29.yml
@@ -2545,7 +2545,7 @@ overlay29:
       description: |-
         Checks if a monster does not gain experience.
         
-        This basically just inverts IsSpecialStoryAlly, with the exception of also checking for the "Joined At" field being DUNGEON_CLIENT (is this set for mission clients?).
+        This basically just inverts IsSpecialStoryAlly, with the exception of also checking for the "Joined At" field being DUNGEON_CLIENT (set for mission clients).
         
         r0: monster pointer
         return: bool
@@ -3279,6 +3279,17 @@ overlay29:
         
         r0: Entity pointer
         return: True if the monster can see invisible monsters.
+    - name: IsTacticSet
+      address:
+        EU: 0x230294C
+        NA: 0x2301F20
+        JP: 0x2303470
+      description: |-
+        Returns whether a monster is set to use a specific tactic.
+        
+        r0: Entity pointer
+        r1: Enum tactic_id
+        return: True if the monster is set to the given tactic.
     - name: HasDropeyeStatus
       address:
         EU: 0x230297C