Please take a look at my Tristana Rework suggestion

This is not meant to be taken too seriously. No flaming please. Just wanted to throw some suggestions in the air.

Do you guys remember how Rito decided to rework ? Changing the vanilla auto attack system into the 2 ammo shot gun system? Then we had with his unique 4 ammo attack system.

I would like to suggest that get something similar. Cannons as a weapon are not mean to be rapid fired, since it's against physics. The fact that she wields a cannon is unique for an ADC as it is, so why not make the uniqueness more fitted towards cannons?

Here are my suggestions

Make 's base attack speed very slow, or add an ammo system.

Passive ~ Draw a bead: 's attack range increases as she levels up. Increase 's attacking range by 20 for every additional 100AD. (In terms of physics, the more force that was used to propel the cannonball, the further it will fly. So if we apply that, it would mean more attack damage equals higher range.)

Q: Rapid Fire gains maximum attack speed (2.5) on her next 3 basic attacks within 5 seconds, with each one dealing modified damage. (Almost copied this entirely from Jayce's kit. Personally, I think it would be better for her E stacks. Despite the fact that the original rapid fire skill can give 120% extra attack speed at max rank, I didn't find it to be too useful.)

W: Rocket Jump Doesn't slow enemies on landing. (Mostly unchanged, except no slow)

E: Explosive Charge Passive: Enemies explode when slain by basic attack, dealing magic damage to all nearby enemies. Her next basic attack will be a critical hit. Active: Throw an explosive charge at the target area. If it lands on the ground, it will stay dormant and invisible unless someone (be it minions, champions or jungle creatures) picks it up. When the explosive charge is active, you can attack and stack it up to 4 times to explode.

(Mostly unchanged. Tristana pushes lane way too easily to the point where she gets ganked so many times due to poor lane management. I want to offset that disadvantage by giving her an extra critical hit that could give her the chance to do something creative. I also made it so that her explosive charge can act like Q time bomb, where it can sit on the ground, it can also be invisible like traps, waiting to explode.)

R: Buster Shot fires a massive cannon ball at the enemy. (A wide linear skill shot) Dealing magic damage and knocking back all enemies that come to contact with the cannon ball. Anyone who comes into contact with the cannon ball are slowed by 60%.

(Instead of being a target-and-click, its now a skill shot. The slow from rocket jump was also moved here. I know that Rocket Jump slow was meant to be used for chasing, but nowadays everyone is using it to escape. Plus, if you use your ultimate to knock assassins back, they will just immediately catch up again, so I thought "why not put the slow here instead?")