Ok so for awhile now I've been noticing something with Cidd and I haven't been able to figure out the what and why of it or if maybe I'm missing something that should of been obvious.

S1 - Attacks with a dagger. A critical hit will increase Speed of the caster for 2 turns. Damage dealt increases proportional to the caster's Speed.

As I've understood this since I first used Cidd, this is a single target attack. With S2 - Wind's Resolve passive active, it still remains a single target attack.

Could anyone explain to me why my Cidd hits two targets on from what I can tell is a completely random chance but, often enough to feel like it's just an unlisted part of the skill.

*currently equipped with Dust Devil but, that hasn't always been the case.

Anyone able to explain this for me O_o?