History Main / WeaponOfXSlaying

* ''VideoGame/DeadOrSchool'' has weapon properties that can increase the damage against certain enemy types. The most notable is the [[LegendaryWeapon unique flamethrower, the Anti-Mutant Weapon]] which does 25% more damage against undead enemies. This is the largest damage bonus vs enemy type and it's unique to that weapon. Unfortunately like most of these unique weapons, they are AwesomeButImpractical by way of PowerUpLetDown. These unique weapons often have a low weapon grade and the Anti-Mutant Weapon is especially poor quality with a grade of Normal (the 3rd worst grade), so it has a low damage base that quickly goes obsolete after the boss you use it against.

** Shiftsilver from ''Dragon'' #355 is made with a mix of silver, steel, and the blood of a willing shifter donor. It's stronger than ordinary alchemical silver weapons, and beyond bypassing silver damage reduction it also inflicts +2 damage to such creatures.

* ''Literature/FightingFantasy'':

* “Series/GameOfThrones”: Valyrian Steel is the only thing that can kill White Walkers, aside from Obsidian.

* ''VideoGame/{{Extinction}}: The Raveni monsters can only be damaged if your sword absorbs energy from magic runes. When charged fully you can sever limbs and heads with one swing.

* ''Anime/{{Symphogear}}'': While effective to the point of overkill in most situations, the ''Symphogear'' system was initially developed to combat a type of EldritchAbomination called the Noise. More specifically, using a Symphogear forces any Noise within earshot into a tangible state that ''can'' be slain in the first place, and makes the wielder immune to their TouchOfDeath.

->''"An extra +10 against anything that starts with the letter J. Don't ask why. Don't ask what [[Literature/Jabberwocky Vorpal]] means, either."''

->''"An extra +10 against anything that starts with the letter J. Don't ask why. Don't ask what Vorpal means, either."''

** A trident-specific enchantment, "Impaling", gives a damage bonus against {{Aquatic Mook}}s instead.

* ''VideoGame/{{Warframe}}'': The Paracesis, the Sentient Slayer. Not only can it outright disrupt the Sentients' AdaptiveAbility, whenever it goes beyond Rank 30 thanks to the application of Forma (maximum of 5 for a max rank of 40), it gains bonus damage against Sentient-type foes, including [[TheDreaded Shadow Stalker]].

* ''VideoGame/{{Earthbound}}'' has spray bottles filled with Rust Promoter (which damages robots) and Insecticide (guess).

* ''Literature/TheToughGuideToFantasyland'': Rune-enchanted swords are often meant for killing some specific foe, such as dragons, orcs, or goblins. They tend to be intensely underwhelming when use against anything else.

* In ''Literature/KeeperOfTheSwords'', Fess the necromancer occasionally uses a dwarven falchion of undead slaying to pacify those unruly zombies.
* In ''Literature/LordDemon'', many of the demons have weapons that are attuned to kill them specifically. Kai Wren shows up to one duel wielding the sword made to kill his opponent, and the wounds he sustains don't heal properly. Kai Wren also has an OhCrap moment when he realizes just who has the weapon made to kill ''him''.
* In ''Literature/TheLordOfTheRings'', the Arnorian shortswords carried by the hobbits turn out to be these: they were enchanted by the Arnorian Dunedain to break the Witch King's defensive spells and make him vulnerable. Merry Brandybuck eventually stabs the Witch King with his blade, the spells break, and in the next second Eowyn slays the Witch King.

* ''Roleplay/RecordOfLodossWar'' has a set of magical halberds enchanted to slay one specific dragon. [[spoiler:These prove effective despite the heroes having to jump off a cliff to hit the dragon's head.]]

* [[Franchise/KingdomHearts Keyblades]] are turned into this in ''Fanfic/InfinityTrainBoilingPoint'': They're created by the Train in order to help their users fight back, if necessary, against the Denizens created by [[spoiler: the Heart System.]]

* ''Literature/TheChroniclesOfDorsa'':
** Joslyn is given a magical spear for killing an [[ElementalEmbodiment undatai]] by the small men, since no ordinary weapon can do the deed.
** Later, she gets her Ku-sai's sword, which will drive a shadow out of any host's body with just one cut.

* [[OurDemonsAreDifferent Demons]] in ''Literature/HeraldsOfValdemar'' are largely immune to normal weapons. Magic can kill them, and [[KillItWithFire fire]], but "demon-slaying blades" are also mentioned. Tarma and Kethry aren't sure if Kethry's sword [[EmpathicWeapon Need]] qualifies as that last, but she certainly does make one scream. In Kerowyn's hands she certainly does kill a demon leech.
** Need's unique properties mean that in the hands of a non-magic-using fighter she's AntiMagic, both protecting her wielder from any form of magic they don't consent to the effects of and carving effortlessly through magic shields and defences. This is helpful versus demons but has a lot of other applications too.

* ''Series/OnceUponATimeInWonderland'': Well, not so much slaying it appears, but like in ''Film/AliceInWonderland2010'', the Vorpal Blade seems to be the only weapon which can harm the Jabberwocky, at least to the extent of being able to keep it pinned to a wall indefinitely. Like in that film, this is a MythologyGag to the blade being the one used on the creature in the poem named for it.

[[folder:Web Comics]]

[[quoteright:350:[[VideoGame/TheElderScrollsVSkyrim https://static.tvtropes.org/pmwiki/pub/images/silver_sword.png]] ]]

** The 1E ''Mace of Disruption'' also does double damage to undead ''and'' forces them to [[TurnUndead save against being turned by the equivalent of a 12th level cleric]] or be destroyed. In game terms, any undead of wraith strength or less is automatically pulverized/dissipated/snuffed out when struck, and even a lich has a 20% chance of suffering a OneHitKill. [[note]]It still only does one point of damage against a demilich, though.[[/note]] The ''Mace of Smiting'' has a similar effect on golems and other constructs.

** It has the Mace of Disruption, which is very disrupty and allows you to plough through all but the most durable undead with ease. Amusingly if you [[GuideDangIt find the sidequest to upgrade it]] it even works on [[BonusBoss Kangaxx the Demilich]], whose piss-poor save versus death spells means he stands a good chance of eating an instant kill the round after you strip his spell protections.

*** The Abyss Watchers were dedicated to hunting the creatures of the Abyss. As a result, the weapons formed from their soul such as their signature Farron Greatsword [[spoiler:and the sword of their inspiration Knight Artorias]] deal more damage against Abyssal enemies. [[spoiler:This includes the BonusBoss of the Ringed City Darkeater Midir, an Archdragon who has been tainted by the Abyss after fighting it for so long.]]

* ''VideoGame/''BloodstainedRitualOfTheNight'': The Zangetsuto, a katana [[BilingualBonus whose name translates to "Sword that cuts the moon"]], always inflicts a CriticalHit if used against the moon demon Gremory.