Mr. Smith the Secret Agent

New champion idea focusing on a espionage-esque theme, like MGS or James Bond. Middle-aged man who has seen too much, and done much worse. Relies on his stealth and traps to give him the edge and stay ahead of his opponents.

Passive: Stealthy Shooter Mr. Smith has increased damage to targets that do not have vision or Mr. Smith. Attacking does not grant vision of Mr. Smith. Stealthy Shooter only procs on unique targets once every 10 seconds.

Q: Tripwire Mr. Smith sets a tripwire between two walls or objects. Once an enemy champion walks through the tripwire, Mr. Smith receives an audio signal, and is granted vision of the champion who triggered the tripwire for 3 seconds. 20 mana at all levels. 6 second CD at all levels.

W: Focus Fire (toggle-able) Mr. Smith is able to focus his aim on the head, arm or leg of his target, causing damage and varying effects based on the area of focus. All attacks deal standard auto-attack damage. Effects can only be procced on unique targets once per 9 seconds. No mana cost. 8/7/6/5/4 second CD. If Mr. Smith aims at the target's head, Mr. Smith gains 5/10/15/20/25% increased critical strike chance. If Mr. Smith critically strikes while aiming at the target's head, the target is stunned for 2 seconds. If Mr. Smith aims at the target's arm, the target's attack speed will be lowered by 7/9/11/13/15%, and attack damage will be lowered by 15/20/25/30/35, once Mr. Smith deals damage. If Mr. Smith aims at the target's leg, the target is slowed by 10/20/30/40/50%, once Mr. Smith deals damage.

E: C4 Mr. Smith plants explosives on the walls, ground, or structures on Summoner's Rift. Mr. Smith starts with 2 explosives, and gets 5 at max ability level. Explosives deal 75/90/105/120/135 + (40% bonus AD) + (60% AP) per explosive. The explosives can be manually detonated by tapping E, while additional explosives can be planted by holding E. If an enemy champion triggers Tripwire, the explosives will automatically trigger when that enemy champion comes within range of the explosive. 80/85/90/95/100 mana cost. 22/21/20/19/18 second CD.

R: Targeting Beacon Mr. Smith shoots a targeting beacon at selected enemy champion, granting vision to Mr. Smith of that enemy champion. The beacon can only be removed if that enemy champion dies, or if Targeting Beacon is recast. Mr. Smith gains 15/25/35 move speed towards the affected enemy champion. Mr. Smith also deal 5/10/15% increased damage to the affected enemy champion while the beacon is active. Every 20 seconds, the increased damage reduces by 1%, to a minimum of 1%. If Mr. Smith kills the affected enemy champion, Mr. Smith receives a permanent damage boost against that champion. The permanent damage increase will be equivalent to the remaining Targeting Beacon damage boost at the time of the enemy champion's death. Mr. Smith only receives one permanent boost per unique champion. 150 mana at all levels. 200/180/160 second CD.

Give me feedback or ideas on how to improve. Thanks.