Deal 7% more damage to low health champions. Gain AD/AP after kills or assists.
Electrocute on Talon allows you to blow up enemy champions quickly and easily on roams with [R]->[Q]->[W].
The extra bit of damage in lane can also set you up for kill potential.
Talon is a fantastic user of Sudden Impact thanks to [Q] acting as a dash. The extra bit of Lethality allows you to deal massive amounts of damage when going for the assassination.
Zombie Ward allows you to keep yourself safe in lane with massive river vision control. Hug the side of the lane that you have warded so that you're able to es cape safely if the jungler appears on the opposite side.
If you're oping for an early Duskblade and plan to snowball the game, Eyeball Collection is a good alternative option.
Relentless Hunter's bonus Movement Speed massively empowers your ability to leave the mid lane and pressure the side lanes with quick roams. Talon loves traversing the map as quickly as possible, and Relentless Hunter is key to that.
Triumph allows you to dive towers or the back-line with an all-in combo and the ability to get out alive afterward, thanks to the massive heal.
WhyCoup De Grace
Coup De Grace is the ultimate rune for assassins looking to execute squishy targets. The bonus damage is easily accessible on a high damage kit such as Talon's.