Kyoshiro's Blade

Kyoshiro's Blade is a  introduced in patch 2.4 of Diablo III. It requires Character Level 70 to drop.

The  has two multiplicative damage modifiers: the second one triggers if the cast hits few enemies. This only counts the initial instant damage, not other effects. As for Wave of Light, damage of all its 8 waves will still count. For other Runes, damage of secondary effects will not be counted towards the 3-enemies-limit.

Development
Originally, this item was named Falcon Strike, and had an alternate description as following:

Trivia

 * Kyōshirō is a Japanese male given name, whereof Kyōshi, (狂死) means "dying insane", while the rō, (郎) is a merely common suffix for male names.