Tristiana E active "mini-rework" rebalancing

What is the "theme" of Tristiana?

I would argue the theme, the core of her gameplay is that she is a carry who should operate at peak power at the max range of her autoattacks, which increases through the game gaining her hypercarry power. She uses her jump and ult to keep opponents at arms length while she shreds them with her potent steroid.

She currently lacks a meaningful weakness, largely due to her E active. It allows her to go even or win most early game trades, a simple point and click skill that conveys a powerful DoT effect. If Riot is looking to retool Trist with a meaningful weakness, this is the skill to do it with.

Tristiana's weakness should be this: get within her zone of long range safety, and her power potential goes down. I would rework her E to this, leaving the passive AOE:

Explosive Shot: Tristiana fires a special explosive shell in a straight line. When it reaches its maximum range, it explodes, applying a burning DoT to any targets hit. If it collides prematurely with a unit or champion, the shell is a dud and deals only minor damage. If an enemy champion dies hnder the effects of Explosive Shot, Tristiana's W resets.

Range: Equivalent to present range (I.E, Trists max attack range). Remove the grievous wounds. Essentially, Tristiana is rewarded for maintaining her maximum range and punished for allowing enemies inside her zone. Replacing the current W reset with this additionally gives the E active a place in late game as well as early, giving her more of a requirement to display skill to make her big plays in the late game. I would reward this skill with a modest AD scaling as well to keep it's damage relevant especially given how tricky it could be to hit late game.