Deal 7% more damage to low health champions. Gain AD/AP after kills or assists.
Nocturne can quickly and easily proc Electrocute on his ganks with an [R]->[E]->[Q] for massive burst and shred potential.
Sudden Impact further empowers your ganks, granting you bonus Lethality when diving in with [R] so you're capable of killing your target ASAP.
Eyeball Collection is all about snowballing your lead from kills with [R]. Nocturne is also a natural builder of Duskblade and the ward sweeping nature of Duskblade empowers your ability pick up more stacks.
The bonus Movement Speed from Relentless Hunter allows you to quickly get into position to react to a fight with a well-timed [R].
Alacrity's bonus Attack Speed is great for empowering your jungle clear to be both faster and healthier for more passive procs.
WhyCoup De Grace
Coup De Grace's execution damage is ideal for Nocturne's high damage burst playstyle.