Tristana is a powerful AD carry that has high range and is especially powerful late game. Tristana ends up with the longest range in the game late game.

In a teamfight you usually want to start off with basic attacks and a explosive shot if the fight inst going well or is taking a while time to unleash your Q and another explosive shot. If things still are losing for you use your jump to clear a wall and leave those suckas going GOSH DARNIT! also if you are near baron or dragon you can go in there run to the edge then hit dragon/baron and jump over the wall i have used this on a fed Shen and he burned his flash.

You want to hit the weaker minions this can lead to chain reactions giving you tons of gold at once due to your E's passive.

In a skill sequence it depends on the scenario if you are low but your opponent is less low and right next to you pounding you while you try to get away use your E and quickly ult them away fro you and use your jump to clear a wall they will likely die from the E overtime effects.

rule 1: GET A LULU SUPPORT OR AT LEAST SUPPORT OR SOMEONE WITH CC THIS IS MASSIVELY IMPORTANT
rule 2: use your rocket jump aggressively it helps

-Tristana is a good bully early game and is EPIC late game but struggles mid
-Tristana works well with supports but they usually need decent CC lulu is a very good idea but without a support you can get owned