Legendary armor effects Legendary armor effects are effects applied to basic armor that use special prefix modifiers that cannot be obtained elsewhere . They cannot be scrapped , but can be modified . They will appear on screen when picked up , and are marked with a star . Unlike unique armors , they are randomized and are never named . Legendary effects can provide the same effects as unique armor . Like unique armors , Legendary armors can be given a custom name and modified at an armor station . Legendary armor pieces are only found on the bodies of " Legendary " variants of enemies and in the inventories of merchants . They can spawn at random locations throughout the Commonwealth , depending on the difficulty setting . They are much more difficult to defeat than regular enemies , as each one has a chance to " mutate " after their health is depleted , restoring it to full and boosting their stats . They will " almost " always have a legendary piece of equipment in their inventory . Sometimes the legendary enemy ( or ally ) is not labeled as " Legendary , " but can be identified by the healing waves during and after a fight ( if still alive ) . Any legendary mod will add 2 Damage Resistance and 2 Energy Resistance to the armor it ' s added to . For example , an unmodded heavy combat armor chest piece will have 35 DR / 35 ER . A legendary version with no other mods will have 37 / 37 . Any armor . S . P . E . C . I . A . L . armor effects . Fortifying , Cunning , Lucky and Sharp are stackable . Powered effects . Almost Unbreakable , Nuka , Piezonucleic Lining , Quantum and Low Weight Auto Stim armor effects . The Auto Stim effect will not increase one ' s dehydration level in survival mode , unlike using a stimpak normally . Camouflage armor effects . Cloaking and Chameleon effect has the same effect as the Stealth Boy mod for power armor - it turns the wearer invisible . Which part of the armor bears the mod is irrelevant ; it will always work the same . All the underlying rules for effective sneaking still apply , so without good sneaking abilities ( which means , enough points invested in the Sneak perk and enough U . S . Covert Operations Manual s collected ) as well as careful use of the environment , even invisibility won ' t save the user from being detected by vigilant enemies . The mod also turns not only the wearer invisible but also their weapon including its sights ( even the glowing portions of glow sights will fail to glow ) , making aiming quite difficult unless one of the electronic scope mods ( night vision scope , recon scope ) is installed . Furthermore , it works on companions as well , although the effect will simply stop working fairly often with no apparent reason , somewhat limiting its usefulness ( especially given most companions ' unpredictable sneak behavior ) . Unequipping and re - equipping a chameleon piece from a companion ' s equipped inventory fixes their chameleon armor ' s effect . Martyr ' s armor effects . The Martyr ' s effect does not stack with additional pieces . In fact , wearing multiple pieces can prevent the slowing of time that the effect is supposed to cause . In the game ' s files , this effect was intended to only spawn on chest armor , however due to a bug it instead spawns on any armor piece . Also , if the player character has the superior Nerd Rage ! perk , it will completely override the Martyr ' s effect . Bolstering armor effects . The Bolstering effect does not add extra resistance to the armor itself , but rather the player character . This can be apparent by looking at the resistance totals under the " STAT " tab of the Pip - Boy , or in the apparel section of the " INV " tab while having full HP , then again after taking damage . ( The resistance of the armor does not change , but the totals do ) . Damage Reduction armor and weapon effects . All Damage Reduction ( i . e . Hunter ' s , Ghoul Slayer ' s , Assassin ' s , Exterminator ' s , Troubleshooter ' s , Mutant Slayer ' s , Cavalier ' s and Sentinel ' s ) effect stacks with the armor and weapon effect of the same name . Equipping seven pieces will negate all damage ; except " fire " or " poison " damage . This causes enemies to panic and run away , due to how the AI of Fallout 4 is programmed . Console command . Legendary effects can be added to items by dropping them on the ground and using the console command while having them selected , followed by the mod ID . You can ' t stack several mods on a single item , but you can stack over multiple pieces ( armor ) . You can also replace a mod with another one via console . If the item is for some reason unclickable ( a semi - common glitch ) , legendary effects can be added to items using this alternative process : By utilizing the steps described above , it is possible to apply legendary effects to power armor pieces . Keep in mind , though , that contrary to regular armor and weapons , power armor can ' t be renamed , so keeping enhanced power armor pieces apart from others of the same name under these circumstances can quickly turn into a chore .