Hextech style Champion

Hi I been thinking a little while and Thought I'd like to share a kit I thought up to see how you guys liked it. The idea is a adc / Support Champion with a bit of utility and other neat stuff. Design wise I was thinking of sort of an engineer with a two handed gun. These are just my idea's feel free to test, re-balance and do whatever you like with them I just wanted to give you my ideas and see how you liked them.

The idea is around a duel play style where both are auto attacked focused but play differently

Passive; Quick Fix - The Engineer quickly tools the guns focus. Shifting either more towards protecting her allies or to damaging her foes. At levels 1/6/11/16 She gets to choose between increasing her protective or offensive abilities. Either increasing her auto attack damage by 2% or her protection ratio by 10%

Q - Tools for the job; This allows her to switch her primary weapon to a needle gun that makes her auto attacks Create a shield around the target. granting them protection equal to 10/20/30/40/50 + 0% AP (To a maximum of 50+40% AP when her passive is maxed out When switching weapons she is unable to move for 1.25 seconds while she packs away her previous weapon Pressing Q again during the animation will cancel the change of weapon. After not being shielded for 2 seconds the Shield starts to drop off at a rate of 25% per a second (after 6 seconds it terminates)

W - Warp field; She targets a spot on the ground and fires a land mine. after 1.5 second it denotes and pulls near by enemies to the centre of it dealing 50% AP damage and 60% AD damage. (the size of the grab effect is about the size of orrianna's W. Animation wise I have the image her tossing a orb with legs that when it lands the legs drop down and a blue lighting field sucks them in. (12s CD) (another way to think of this ability is what happens if Ziggs tossed out his W and it activated orianana's ult in his W radius.)

E - Repulse gun, or Bio-metric repair drone. While her Q is on damage she uses a large hair dryer shaped plasma cannon that fires a blue orb in a direction. when this hits either a champion, minion or monster it detonates and knocks the target and any nearby units (friendly or foes) back 215 units from the area it detonated to. Dealing 0.3% AD damage to enemies and half to allies, should this damage slay an ally it counts as an execution and adds 50% to the cooldown. (20s CD). While on the needle gun it drops a tank on the ground with a visible (even through terrain and bushes) green aura (like janna's ult) While within this tanks zone her shielding applied to allies starts to heal them, converting to health at the rate of 10% of the shield per a second. the tank has 3 bars of health much like a ward and can be broken with auto attacks. She can store upto 3 tanks (at the rate of 1 tank per a 20s)

R - Unleash the titan; She targets one minion and converts it into a titan tank minion who will attack her target or nearest enemy (if they are healing) has health equal to triple the engineers and has triple minion armour and MR. It counts as a champion for use of abilities (such a lulu's polymorph) and deals damage equal to 100% of her AP or 50% of her AD) The minion its self looks like a tank being driven by a minion in a helmet with a star on. The tank its self has movement speed equal to twice a minon so will charge ahead of the minion line. Unlike normal minons it will focus champions when under turret. the ability has a 180/150/120s CD but once the minon is destroyed Its remaining cooldown is halfed.

I feel that it could use some work to the E and R but I think the Q and passive is very solid part of her kit and would make her a very different champion to play as she protects allies with her autos Though maybe the best thing to do is have her Q shielding on a Energy bar.