Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
My choice will be 11/0/19, becouse the reduces CD, for the skill Acid Hunter.
You can also go more offensive then it will be 21/0/9, and that will be becouse of the 5% Dmg.
My rune choice is Reduces CD again becouse of the Acid Hunter skill, and Armor Penetration for more Dmg.
(Passive) Zaun-Touched Bolt Augmenter:
Urgot's attacks reduce the damage that his target deals by 15% for 2.5 seconds.
(Active) Acid Hunter:
Urgot fires a missile towards the cursor dealing physical damage. Missile-lock can be achieved by holding the cursor over target afflicted by Noxian Corrosive Charge.
(Active) Terror Capacitor:
Urgot charges up his terror capacitor to gain a shield that absorbs damage for 7 seconds. While the shield is active, Urgot's attacks and missiles slow targets.
(Active) Noxian Corrosive Charge:
Urgot launches a corrosive charge at a target location. Enemies afflicted by the charge have reduced armor and take magical damage over 5 seconds.
Acid Hunter is able to missile-lock onto target affected by Noxian Corrosive Charge.
(Active) Hyper-Kinetic Position Reverser:
Urgot charges up his Hyper-Kinetic Position Reverser, gaining armor and magic resistance for 5 seconds. The target is stunned for 1 second before swapping position with Urgot. After the swap, the target is slowed by 40% for 3 seconds.