Be empowered by killing.
"With the weak as my prey, I strengthen my own self. This is how my swordsmanship follows the survival of the fittest."
― Shishio Makoto (Rurouni Kenshin)
The power to
be empowered by killing others. Variation of War Empowerment. Opposite of Peace Empowerment. Not to be confused with Death Empowerment.
Users become stronger, faster, more durable, etc. by killing others, possibly unlocking abilities related to the affinity and enhancing the existing powers. Some users may be able to draw sustenance from the kills or even slow or stop aging.
Not being able to kill may weaken the user.
May be limited to certain beings only.
May lose strength if the person killed is resurrected.
Cleavers ( Destiny)
All-Black The Necrosword ( Marvel Comics)
Death Penalty ( Final Fantasy VII)
Banryu ( InuYasha)
Mugenjin ( Rurouni Kenshin)
Amulet of Power ( Marvel Comics)
Malice Sword ( Hyperdimension Neptunia); limited to CPUs
Fell Arms ( Tales of Series)
Burning Soul Sword ( Yu-Gi-Oh!)
The Soul Cube ( Doom 3)
The Judge's (Buffy the Vampire Slayer) power grows with every person he kills...
...allowing him to bounce his power through an entire mall full of people.
Akuma (D.Gray-man) evolve and grow more powerful by killing people.
Based on the Hive's (Destiny) "Sword Logic" all power must be taken not received, for they made their swords to be able to make the wielder stronger for ever one of their slain victims.
Shinigami (Death Note) extend their lifespans by using their notebooks to kill humans, though must abide by a set of rules to prevent their own deaths as punishment.
Bankotsu (InuYasha) made a wish on his Banryu, by slaying 1000 humans and 1000 demons it will gain demonic powers.
Shishio Makoto's (Rurouni Kenshin) serrated Mugenjin sword absorbs human oil from its victims to empower and strengthen itself, gaining fire-based slashes.
Flame Swordsman (Yu-Gi-Oh!) equipped with the
Ally-Killing Demon Sword: Burning Soul, which enhances the wielder at the cost of comrades' lives.
The Soul Cube (Doom 3) is a weapon that charges up through the kills its wielder makes, and is truly devastating against demons.
Gorr the God Butcher (Marvel Comics) Gains greater levels of power and ability from his necrosword through the act of killing gods and imbibing on their blood.
Desak Sterixian (Marvel Comics) Grows in power and ability by killing gods and absorbing their souls into his amulet.
Possessing the ability to drain magical power, Orb (Marchen Awakens Romance) grows stronger with each person he kills.