User blog comment:DoctorAsawa/Custom Tristana Changes/@comment-1330314-20140108103637

Turrets have a range of 775, so Tristana can't actually outrange turrets with a range of 703. The actual range bonus you end up with is on her passive 136, not 135. :P

Giving Trist 50 extra attack range with her Q up gives her a maximum effective range of 736, 33 more than she can have now and by far the longest attack range in the game. The problem with this, though, isn't so much with her late game as with the early game power it would give her: she gets to have her range boosted to a minimum of 600 in lane, which would make her laning phase even safer than it is now (and she's one of the marksmen with the safest escapes already, thanks to her W and ultimate).

While I think turning her E active into an autoattack reset is a brilliant idea, I don't agree with the rest of the changes. I don't think AP Tristana is toxic: yes, she's extremely binary (she either facerolls or falls off hard), but there are tons of ways to deal with her, which is why AP Trist never sees competitive play. If you wanted to change that, you should've tried to soften the difference by toning down her snowballing potential and allowing her to do well or catch up if behind. What you've done, though, is move some of AP Tristana's power to AD Tristana: AD Tristana is already in a very good spot, and giving her more power (especially burst-oriented power) would give her excessive amounts of damage. AD Trist's strength lies in her immense safety and sustained damage. She doesn't need ability-based damage. To that effect, I also don't see the point in changing her ultimate to a skillshot, particularly as you kept its range so short it would be impossible to land unless the target's in your face. You've basically changed her peel to an unreliable burst damage ability, which would change her playstyle in a way that doesn't make much sense for a marksman (this ability deals massive damage, but she needs to forgo all of her safety and positioning just to land it).

I see the main issue you have with Tristana is her AP build. I don't think you should change AD Tristana, since she's powerful enough as it is, but if you hate getting bursted by AP Trist you should change her ability set in a way that would leave AD Trist mostly unaffected, but move AP Trist away from instant 100-to-0 burst and towards a more spaced out combo.