History Main / ChainLethalityEnabler

* ''VideoGame/VampireTheMasqueradeBloodlines'': The capstone [[BloodMagic Thaumaturgy]] power Blood Boil deals hefty damage to the target, or, if it's enough for a OneHitKill, makes them explode for AreaOfEffect damage.

* Contagion is an area of effect spell that deals minor damage over time, and if a creature dies while under its effect casts itself again centered on that creature. But if the creature was also affected by Essence Drain, a small, slow-moving projectile that inflicts a large amount of damage over time to what it hits, the re-cast Contagion will carry the remaining effect of the Essence Drain with it, effectively turning into an area of effect spell that deals massive damage to all enemies near the dead one. Given sufficient damage, duration of skills, area of effect increases for Contagion, and density of enemies, a single enemy dying from the combination of these two spells can wipe out everything for multiple screens.
* This is the role of all the many variants on "enemies you kill explode, dealing [a percentage] of their maximum health as [damage type]". The Exile will typically ensure they have enough bonuses to that damage type for it to kill any comparable enemies nearby.
* Wearing the notorious belt Headhunter causes the Exile to steal the special abilities of rare enemies they kill for 30 seconds, granting powerful passive bonuses that make it easier to take down the second and steal its abilities too, resulting in the Exile becoming incredibly lethal and hard to kill so long as there are enough rare enemies.

* Enabling the unit to act more quickly after getting a kill. This features in both real-time and turn-based games, though the means differ - in real-time games, a unit can get a significant buff to their movement speed; in turn-based games, a unit may move further up the VisualInitiativeQueue (for games which use ActionInitiative), or may immediately get to take another action (both in ActionInitiative games and other turn-based games.)

* The various playable characters in ''Videogame/{{Borderlands}}'' all have some form of "Kill Skills" that activates on kills, granting them buffs that stays active as long as they can continue getting kills. This can range from offensive ones such as increased damage/fire rate as well as more survivability-focused ones like regenerating health or movement speed.

** Late-game Cold Blood lasts twice as long, stacks five times, buffs armor, flat out ignores up to 25% of all damage, grants immunity to all elemental damage, increases attack speed, increases attack damage, increases crit chance, etc.

** Master Yi reduces the remaining cooldown of all of his abilities by 70% whenever he scores a kill on an enemy champion. His ultimate ability, Highlander, grants him greatly increased movement and attack speed and immunity to slows, and its duration is extended by an additional 7 seconds (its base duration) for every champion kill he scores while it is active.

* ''{{VideoGame/Warframe}}'': Valkyrs Eternal War augment gives her third ability Warcry additional effect duration on its attack speed buff.
* ''VideoGame/XCOMEnemyUnknown'': Snipers can unlock a high-level ability "In the Zone", which lets them attack again after killing an enemy. Given how good they are at hitting things and how much damage they do, they can clear entire rooms of enemies in a single turn.

** One of the Waystalker's optional Talents gives her a free {{Multishot}} within 10 seconds of a melee killing blow.

* In ''[[VideoGame/EtrianOdyssey Etrian Odyssey 2 Untold: The Fafnir Knight]]'', the Fafnir Knight's Overkill skill is a single-target attack, but will attack all enemies if the initial target dies.

** Gunslingers, Swashbucklers and Hungry Ghost Monks refill their resource pools (Grit, Panache and Ki respectively) by landing either a killing blow or CriticalHit with their class's WeaponOfChoice. The third-party Harbinger class (part of a SpiritualSuccessor to 3.5's ''Tome of Battle'') can likewise [[CooldownManipulation refresh their maneuvers]] by slaying an opponent they Claimed on a previous turn.

May overlap with but doesn't necessarily involve KillStreak.

* Any reward for a kill that ''doesn't'' directly and immediately facilitate follow-up. A unit healing after getting a kill would not fall under this trope.

** A [[ReligionIsMagic miracle]] in the Lore of Tor, GodOfThunder, fires a lightning bolt that [[ChainLightning arcs]] to a new enemy if it kills its target, continuing until a target survives or no enemies remain in range.
** 4[[superscript:th]] edition has an optional rule, "Deathblow", where a character who deals a OneHitKill in melee combat can step into their space and make a free follow-up attack against another enemy.

* ''TabletopGame/WarhammerFantasyRoleplay'' 4[[superscript:th]] edition has an optional rule, "Deathblow", where a character who deals a OneHitKill in melee combat can step into their space and make a free follow-up attack against another enemy.

** 3[[superscript:rd]] and 3.5 Edition:
*** Creatures with the "Cleave" combat feat can make an immediate follow-up attack after dropping an enemy. The "Great Cleave" feat lets them use the ability an unlimited number of times per combat round. Some {{Prestige Class}}es possess the "Supreme Cleave" ability, which makes Cleave easier to use by letting you ''move'' between attacks (and amusingly, allows for long-distance travel by placing a line of weak enemies along your path).

** 5[[superscript:th]] Edition: If the damage from the "Finger of Death" {{Necromanc|er}}y spell kills a humanoid target, it automatically [[ZombifyTheLiving animates them as a zombie]] under the spellcaster's command.

* ''Literature/TheScholomance'': Orion Lake has a unique MetaPower that lets him generate {{Mana}} by killing monsters, which contributes to his great success as a MagicKnight.
** Galadriel 'El' Higgins has theorized that she is capable of something similar. She has an extraordinarily easy time [[BlackMagic drawing power from the life-force of others]], a knack for [[PersonOfMassDestruction highly destructive mass-casualty spells]], and the wit to understand how use the first to feed power to the second [[ApocalypseMaiden which would provide more victims for the first and so on]]. [[BadPowersGoodPeople She... does not like to dwell on this]]. ''[[IAmAMonster At. All.]]''

** Galadriel 'El' Higgins has theorized that she is capable of something similar. She has an extraordinarily easy time [[BlackMagic drawing power from the life-force of others]], a knack for [[PersonOfMassDestruction highly destructive mass-casualty spells]], and the wit to understand how use the first to feed power to the second [[ApocalypseMaiden which would provide more victims for the first]].... [[BadPowersGoodPeople She does not like to dwell on this]].