The Megling Commandos are something of a legend in Bandle City. They have a history that spans centuries, and they remain the oldest yordle military unit still in service. They are renowned for their courage and bravery, as well as their deadliness and ruthlessness, making them the most respected and feared of all warriors in Bandle City. Legends of Megling, the valiant founder of the commandos, can still be heard whispered throughout Valoran and it was these legends that most fascinated young Tristana. Since she was a wee child, Tristana wanted nothing more than to become the crack shot that her idol was all those years ago. She trained her entire life until she was old enough to join the military and could attempt to earn the rank of Megling Commando. The senior officers were impressed by her abilities, claiming that Tristana was a natural, and she realized her dream that day as she donned her Megling fatigues. Though her heart lies with her unit, the call to the Institute of War was greater still and now Tristana honors her tradition and protects her people as a champion in the League of Legends.

''Stand very still when she asks you to put an apple on your head!''

Pros:
Very Powerful CC and disabling.
Great utility.
Longest range in game(When she gets Draw a Bread Stacked up)
She's Cool
Cute skins
Cheap
Cons:
Squishy
(Only one con buts "Squishy"...Means SQUISHY)

Draw a Bead
Increases Tristana's attack range as she levels.
-At lvl 18 she has bigger range then Caitlyn(675)
Rapid Fire
Increases Tristana's attack speed by 30 / 45 / 60 / 75 / 90% for 7 seconds.
-I max this ability second(By level 13)
Rocket Jump
Tristana fires at the ground to propel herself to target location, dealing 70 / 115 / 160 / 205 / 250 (+80% of ability power) magic damage and slowing surrounding units by 60% for 2.5 seconds when she lands. On a champion kill or assist, Rocket Jump's cooldown resets.
-I max this ability first as i need it for all situations.
Catch ups.Dealing damage.Skipping over walls.Keeping range(With slowdown).
Explosive Shot
(Passive): Enemies explode when slain by Tristana's attacks, dealing 50 / 75 / 100 / 125 / 150 (+25% of ability power) magic damage to nearby enemies.
(Active): Explosive Shot rends the target enemy, reducing healing and health regeneration by 50% and dealing 110 / 140 / 170 / 200 / 230 (+100% of ability power) magic damage per second for 5 seconds.
-I take it at level 5 but keep it there till i get to max it again(When other spells are unavailible after.
Buster Shot
Tristana fires a massive cannonball at an enemy unit. This deals 300 / 400 / 500 (+150% of ability power) magic damage and knocks surrounding units back 600 / 800 / 1000 distance.
-I take this ability whenever availible.

I take 19/0/11.I focus on mana regenaration in utility while takingall attack damage points in offense+improved exhaust.

Open up withGrabright after.
Grabfor Rapid Fire,i improve it into anlate.andfor dealing damage to more tanky people.
I grabfor health and slowdown.I grab it before that

(Armor Penatration makrs and quintessences)andfor armor penatration.

(Flat health seals)Becouse Tristana is squishy

(Mana regen glyhs)Becouse Tristana has mana problems early on

Leave it for supports
Mana regen glyphs should solve your mana problems.
Makes great escape combinized with rocket jump.
Tristana shouldnt be taking alot damage becouse she is supercarry.But shen she goes in mid she must take it becouse she has no tank with her.Using exhaust and your combo will enable you to kill the enemies.
With Rocket jump-DoubleFlash.Rather take ghost...
This you should be leaving for your tank to get:)
Becouse she needs utility its great spell.Take ghost over flash becouse your rocker jump is very flashy already.
Take this if you dont want Exhaust.Becouse they both make u take low damage.
Cominized with Explosive shot it makes great overtime damage (allows you to kill enemies that are running.)No longer exsists.
It gives her ad she needs it but she is all about moving around battlefield so it wont be very handy.
Unwanted.
She isnt very viable jungler.Except your stonewall :D
Never tested it on Tristana but i guess its useful.

Jump on enemy using yourKnock them back withFollowed withEven that you knocked them back yourwill keep you in range for basic attacks.

At level 6 i suggest you to get lizzard buff and carry your teamates by ganking their lane.I usually do that.

Using yurunique passive you can farm few minions from once.
You can farm and harras at same time.
Hit your enemies nearest ranged minion far away not to get hit by the enemy.When you kill that minion Explosive shot gonna damage champion as well

Thank you for reading this guide.
Please vote and comment but only after testing!