User blog comment:Lykrast/Saki, the samourai/@comment-12443575-20140323203358/@comment-24420226-20140323222933

The dash is only 300 units long (the same as Vayne's Tumble). While possible to hit 3 champions, it's very unlikely they would be so clumped together.

Although a 0 second cooldown is problematic. My recommendation would be to have it reset by a static amount, maybe two seconds, whenever it hits a champion, and simply not let the reset effect stack with mutliple champions being hit.