Tired of ap carrys who cant stay alive in fights if theyre focused ? Try ahri. With this build you should be able to survive any offtank/bruiser/ad carry :)

Pros :
- You should survive any burst (maybe not if you're stunlocked for 6 seconds in a teamfight, but who could ?)
- You should always escape with low hp (that's a great pro, since most ennemies will chase you far, far, far away, and fall into traps very easily)
- With rylai's scepter and your triple flash ulti, you should be able to catch anyone (even a rolling rammus under zilean speed boost, trust me)
- With all those hp and regen, you should be able to farm forever, harass forever, and dive without any problem

Cons :
- You will lack damage in mid game, due to item choice, but that will be offset by the tricky side of this build, allowing you to kill and get assists
- Never reached the very late game, with overfed ad carrys, but i think you wouldn't do much against them with this build. Luckily, you should survive long enough to taunt them into a melee fight, giving your mates a chance to nuke them

As a last item, pick an abyssal scepter if the ennemy team is mostly ap carried, a zhonya's hourglass if their team is mostly ad carried, or a void staff if they're mostly tanks/offtanks building mres

Try to farm as much as you can on mid lane in early and mid game, and in late game you should OS any minions wave with your Q.

You can engage fights, and taunt ennemy carrys with your skill, or with your hp (dont forget to play with it, you're a trickster, you can escape easily, you have a slowing skill, and rilay, and tons of regen).

You can also stay hidden in a bush and wait for ennemy controls to be applied on your mates, so that you can enter the fight safely and run (or triple flash :) ) to ennemy carrys.

Play alot into the jungle, that's great for you. If a fight happens on mid lane, stay backwards, and when an ennmy is low on hp, rush straight through the ennemy pack. The low hp guy will run to the next tower, and their team will split. With your triple flash ulti, you should be able to reach the low hp guy and kill him, then escape safely.