First start with cloth armor or magic resist depending on enemy, ward if the enemy team have a jungler. Then its only procede the items i put on top. You will have a nice damage atack speed and HP, awsome things on irelia. She can tank a bit with this build but she can make alot of damge

With this You can be hard to kill sometimes but if your team is bad i cant do nothing about it, but the team +/- you can carry your team easy.

When playing irelia if u have a tank on team u let him going in front then focus the carry and you will kill him pretty easy, but be carefull irelia not a tank u can engage sometimes in front but you can die easly if going crazy.