Irelia is good for playing on lane because of her Q. You have to use your Q as movement -that means if there is a low health creep near your enemy than jump on him (only if you can kill that creep with your Q), than use your E for stunning or slowing him and press W for more dmg (electrocute will automaticaly prog after you Q,E and than W AA enemy). If enemy decides to run away from you use R.

For farming i prefer Qing creeps but if you are half way out of mana than you may be carefull with it. Someone uses W as well but it isnt that effective as Q, because W is more for fighting champions and jungle creeps.
Be carefull when you are using Q because if it goes on CD than you are propably dead as low HP irelia with no escape.

Your runes are more like pokeing so do combo Q (creep), E (champion), W, Q (champion).

This is short description but i will make it bigger and more detail soon.



and now good luck and have fun with this guide.
Thank you summoner for reading this all and i hope you will leave a coment to lead me right way