diff --git a/korman/nodes/node_avatar.py b/korman/nodes/node_avatar.py
index 25d7184..5579fc8 100644
--- a/korman/nodes/node_avatar.py
+++ b/korman/nodes/node_avatar.py
@@ -303,6 +303,11 @@ class PlasmaMultiStageBehaviorNode(PlasmaNodeBase, bpy.types.Node):
             "link_limit": 1,
             "spawn_empty": True,
         }),
+        ("condition", {
+            "text": "Triggered By",
+            "type": "PlasmaConditionSocket",
+            "spawn_empty": True,
+        }),
     ])
 
     output_sockets = OrderedDict([
@@ -311,6 +316,10 @@ class PlasmaMultiStageBehaviorNode(PlasmaNodeBase, bpy.types.Node):
             "type": "PlasmaBehaviorSocket",
             "valid_link_nodes": {"PlasmaPythonFileNode"},
             "spawn_empty": True,
+        }),
+        ("satisfies", {
+            "text": "Trigger",
+            "type": "PlasmaConditionSocket",
         })
     ])
 
@@ -326,7 +335,7 @@ class PlasmaMultiStageBehaviorNode(PlasmaNodeBase, bpy.types.Node):
             if seek_target is not None:
                 seek_object = exporter.mgr.find_create_object(plSceneObject, bl=seek_target)
             else:
-                raise ExportError("'{}': MultiStage Behavior's seek point object is invalid".format(self._find_create_key(plMultistageBehMod, exporter, so=so).name))
+                self.raise_error("MultiStage Behavior's seek point object is invalid")
         else:
             seek_object = so
 
@@ -382,6 +391,14 @@ class PlasmaMultiStageBehaviorNode(PlasmaNodeBase, bpy.types.Node):
 
             msbmod.addStage(animstage)
 
+        receivers = ((i, i.get_key(exporter, so)) for i in self.find_outputs("satisfies"))
+        for node, key in receivers:
+            if key is not None:
+                msbmod.addReceiver(key)
+            else:
+                exporter.report.warn("'{}' Node '{}' doesn't expose a key. It won't be triggered by '{}'!",
+                                     node.bl_idname, node.name, self.name, indent=3)
+
     @property
     def requires_actor(self):
         return not self.find_input_socket("seek_target").is_linked
diff --git a/korman/nodes/node_messages.py b/korman/nodes/node_messages.py
index de436e5..64c9e03 100644
--- a/korman/nodes/node_messages.py
+++ b/korman/nodes/node_messages.py
@@ -831,6 +831,34 @@ class PlasmaTimerCallbackMsgNode(PlasmaMessageWithCallbacksNode, bpy.types.Node)
         return msg
 
 
+class PlasmaTriggerMultiStageMsgNode(PlasmaMessageNode, bpy.types.Node):
+    bl_category = "MSG"
+    bl_idname = "PlasmaTriggerMultiStageMsgNode"
+    bl_label = "Trigger MultiStage"
+
+    output_sockets = OrderedDict([
+        ("satisfies", {
+            "text": "Trigger",
+            "type": "PlasmaConditionSocket",
+            "valid_link_nodes": "PlasmaMultiStageBehaviorNode",
+            "valid_link_sockets": "PlasmaConditionSocket",
+            "link_limit": 1,
+        })
+    ])
+
+    def convert_message(self, exporter, so):
+        # Yeah, this is not a REAL Plasma message, but the Korman way is to try to hide these little
+        # low-level notifications behind higher level abstractions, so here you go. A notify message
+        # that only targets plMultiStageBehMod. You're welcome!
+        msg = self.generate_notify_msg(exporter, so, "satisfies")
+
+        # The MultiStageBehMod needs to receive the avatar key that whatdonetriggeredit. We don't know
+        # this information at export-time, but plResponderModifier::IContinueSending will interpret
+        # a collision event as "ohey, let's add the avatar key for MSBs" - nice.
+        msg.addEvent(proCollisionEventData())
+        return msg
+
+
 class PlasmaFootstepSoundMsgNode(PlasmaMessageNode, bpy.types.Node):
     bl_category = "MSG"
     bl_idname = "PlasmaFootstepSoundMsgNode"