Nocturne Ability (LoL): Umbra Blades
Umbra Blades Nocturne
Passive

Cooldown: 14
Umbra Blades' damage to the primary target can critically strike for bonus physical damage.
Basic attacks reduce Umbra Blades' cooldown by 1 second, increased to 3 seconds against monsters and enemy champions.
something i've been curious about: does every basic attack reduce this cooldown by 1 second (i.e., with 5 attacks, the CD would be 5 seconds), or does it just reduce to 9 seconds as long as you attack at all?
Every basic attack reduces the cooldown by 1 second.
So after 5 attacks, the cooldown would be 5 seconds.