diff --git a/data/sql/updates/pending_db_world/rev_1777506833363521200.sql b/data/sql/updates/pending_db_world/rev_1777506833363521200.sql
new file mode 100644
index 000000000..10aa3672e
--- /dev/null
+++ b/data/sql/updates/pending_db_world/rev_1777506833363521200.sql
@@ -0,0 +1,38 @@
+--
+-- BRD: Hurley Blackbreath (9537) and Blackbreath Cronies (per-spawn
+-- overrides -71997/-71998/-71999) start with UNIT_FLAG_UNK_6 |
+-- UNIT_FLAG_IMMUNE_TO_PC (320) and only clear it via "OnReachedWP 3".
+-- The encounter propagates aggro: any mob entering combat fires
+-- OnAggro -> SetData 1=2 on every member, which triggers OnDataSet 1=2
+-- -> Attack on the rest. If a peer is still walking its WP path when
+-- this happens, its movement is interrupted, WP 3 is never reached,
+-- and the immunity flag is never cleared -> the mob stays in combat
+-- but cannot be damaged or targeted.
+--
+-- Failsafe: any combat-entry path also clears flag 320 on the unit.
+-- Two new rows per entity: one on OnAggro, one on OnDataSet 1=2.
+--
+
+-- Hurley Blackbreath
+DELETE FROM `smart_scripts` WHERE (`source_type` = 0) AND (`entryorguid` = 9537) AND (`id` IN (19, 20));
+INSERT INTO `smart_scripts` (`entryorguid`, `source_type`, `id`, `link`, `event_type`, `event_phase_mask`, `event_chance`, `event_flags`, `event_param1`, `event_param2`, `event_param3`, `event_param4`, `event_param5`, `event_param6`, `action_type`, `action_param1`, `action_param2`, `action_param3`, `action_param4`, `action_param5`, `action_param6`, `target_type`, `target_param1`, `target_param2`, `target_param3`, `target_param4`, `target_x`, `target_y`, `target_z`, `target_o`, `comment`) VALUES
+(9537, 0, 19, 0,  4, 0, 100, 0, 0, 0, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Hurley Blackbreath - On Aggro - Remove Unit Flags Immune To PC (failsafe if pulled before reaching WP 3)'),
+(9537, 0, 20, 0, 38, 0, 100, 0, 1, 2, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Hurley Blackbreath - On Data Set 1=2 - Remove Unit Flags Immune To PC (failsafe if pulled before reaching WP 3)');
+
+-- Blackbreath Crony spawn 71997
+DELETE FROM `smart_scripts` WHERE (`source_type` = 0) AND (`entryorguid` = -71997) AND (`id` IN (14, 15));
+INSERT INTO `smart_scripts` (`entryorguid`, `source_type`, `id`, `link`, `event_type`, `event_phase_mask`, `event_chance`, `event_flags`, `event_param1`, `event_param2`, `event_param3`, `event_param4`, `event_param5`, `event_param6`, `action_type`, `action_param1`, `action_param2`, `action_param3`, `action_param4`, `action_param5`, `action_param6`, `target_type`, `target_param1`, `target_param2`, `target_param3`, `target_param4`, `target_x`, `target_y`, `target_z`, `target_o`, `comment`) VALUES
+(-71997, 0, 14, 0,  4, 0, 100, 0, 0, 0, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Blackbreath Crony - On Aggro - Remove Unit Flags Immune To PC (failsafe)'),
+(-71997, 0, 15, 0, 38, 0, 100, 0, 1, 2, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Blackbreath Crony - On Data Set 1=2 - Remove Unit Flags Immune To PC (failsafe)');
+
+-- Blackbreath Crony spawn 71998
+DELETE FROM `smart_scripts` WHERE (`source_type` = 0) AND (`entryorguid` = -71998) AND (`id` IN (14, 15));
+INSERT INTO `smart_scripts` (`entryorguid`, `source_type`, `id`, `link`, `event_type`, `event_phase_mask`, `event_chance`, `event_flags`, `event_param1`, `event_param2`, `event_param3`, `event_param4`, `event_param5`, `event_param6`, `action_type`, `action_param1`, `action_param2`, `action_param3`, `action_param4`, `action_param5`, `action_param6`, `target_type`, `target_param1`, `target_param2`, `target_param3`, `target_param4`, `target_x`, `target_y`, `target_z`, `target_o`, `comment`) VALUES
+(-71998, 0, 14, 0,  4, 0, 100, 0, 0, 0, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Blackbreath Crony - On Aggro - Remove Unit Flags Immune To PC (failsafe)'),
+(-71998, 0, 15, 0, 38, 0, 100, 0, 1, 2, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Blackbreath Crony - On Data Set 1=2 - Remove Unit Flags Immune To PC (failsafe)');
+
+-- Blackbreath Crony spawn 71999
+DELETE FROM `smart_scripts` WHERE (`source_type` = 0) AND (`entryorguid` = -71999) AND (`id` IN (14, 15));
+INSERT INTO `smart_scripts` (`entryorguid`, `source_type`, `id`, `link`, `event_type`, `event_phase_mask`, `event_chance`, `event_flags`, `event_param1`, `event_param2`, `event_param3`, `event_param4`, `event_param5`, `event_param6`, `action_type`, `action_param1`, `action_param2`, `action_param3`, `action_param4`, `action_param5`, `action_param6`, `target_type`, `target_param1`, `target_param2`, `target_param3`, `target_param4`, `target_x`, `target_y`, `target_z`, `target_o`, `comment`) VALUES
+(-71999, 0, 14, 0,  4, 0, 100, 0, 0, 0, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Blackbreath Crony - On Aggro - Remove Unit Flags Immune To PC (failsafe)'),
+(-71999, 0, 15, 0, 38, 0, 100, 0, 1, 2, 0, 0, 0, 0, 19, 320, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 'Blackbreath Crony - On Data Set 1=2 - Remove Unit Flags Immune To PC (failsafe)');