Warpsword of Khaine

 is a weapon item introduced in Total War: Warhammer II. It is a legendary item for Malus Darkblade.

Description
The Warpsword was guarded by an ancient Dragon Ogre, who was impervious to all of Malus' weapons. Malus had to draw the Warpsword of Khaine, which killed the Dragon Ogre with a single slash of its blade. The name of the sword was certainly justified as the sword consumed the blood of its victims, as one would expect from the Dark Elf god of murder himself

However, the sword did not appear Elven in origin. It was a double-edged blade, a length similar to a draich, and a blade slightly wider at the point for extra cutting power, hinting that it was a blade much older than the religion of Khaine, as indicated by the Daemon Tz'arkan.

Radiating invisible heat like the hottest Dwarf furnace, the hilt was always warm to the touch. The blade infused the wielder with great strength and could send its user into a murderous frenzy that would not stop until there were no enemies left in sight for it to drink.

The sword also possessed a quasi-sentience, which was able to help guide its wielder's hand, allow them to know when enemies were nearby, and "remember" the taste of creatures it had touched before, such as Tz'arkan.

Effects

 * Campaign Effects: ?
 * Ability: The Warpsword of Khaine
 * Type: Augment
 * Duration: Constant
 * Target: Self
 * Active if: In Melee
 * +8 Hitpoints per second
 * +5% Ward Save

Source

 * https://www.youtube.com/watch?v=degnJa5-la4