You can choose Teleport, Ignite, or Flash. The flash it good to engage or escape. TP is to TP into team fights or to get back top faster. the ignite is to insure that you get a kill.

Get the crystalline flask and 3 Health Potions unless you need the sustain of a Dorian's Blade.

Passively farm unless they have a champion that is weak early, then in that case harass and zone then from CS. Make sure to ward river deep (near Scudle). Just farm and zone till u have enough gold to get a Sheen and boots and/or you are lv. 6.

Irelia's power spikes hard mid game, pretend like your going to do the normal farming then when the go near a minion with low Hp Q that minion and E,W,R and Q and/or ignite to finish. Proceed to push and ward river, after you take tower go mid or bot to get an assist or kill... then repeat and push more towers and get more objectives, and if they push top go push it out. (BTW GET GA BEFORE WITS END)

Late game your Damage and Tank-ness should let you scale better then your enemy in late game, and all your utility will help you catch enemy's out late game and have amazing team fights and dueling. Good luck getting out or bronze or some sh*t GJ, and TY for looking at this sh*ty build.