TrinityCore/sql/updates/231_world_scripts.sql

UPDATE `creature_template` SET `ScriptName`='boss_pathaleon_the_calculator' WHERE `entry`=19220;
UPDATE `creature_template` SET `ScriptName`='mob_nether_wraith' WHERE `entry`=21062;
UPDATE `instance_template` SET `script`='instance_mechanar' WHERE `map`=554;