Horcrux (Drillimation)

A horcrux (ホークラックス) is an item featured in The Drillimation Series. It contains a part of the person's soul that causes them to become immortal. Creating a horcrux allows the user to avoid fainting during a battle. Pretty much anything, including humanoids, can be horcruxes.

Konata Izumi
During The Invasion of '83, Kanata Izumi was killed while trying to protect her infant daughter, Konata, and her husband, Soujirou from being killed by Dr. Manhole. When Manhole attempted to kill Soujirou and Konata, Soujirou used a spell card that caused the projectile to be rebounded to Manhole and eventually make the drill unusable. The sacrifice of Kanata caused Konata to grow a large ahoge on her head, and eventually become a horcrux to Soujirou Izumi.

Kanata Izumi
When Kanata was killed during The Invasion of '83, her soul was immediately captured into the drill. During the events of Space Ninja Team Star Trigon, after Susumu destroyed the drill, a small, green pacteria-like youkai creature emerged from it, and introduced herself to Susumu as Kanata Izumi. When Minami restored her humanoid self, which Minami eventually crowned Kanata as the queen of the Lucky Star Kingdom. Her power caused her to become a horcrux to Susumu and Konata, making it the second horcrux Konata created.

Lighting Rod
The Lightning Rod was the first horcrux that Konata created. When being wielded, Konata becomes invulnerable to almost anything, including bullets and spell cards.