How to make Irelia balanced

Irelia has been OP a long time, and they do things like nerf her ult CD. Which is reasonable yes. But baseline, the problem comes before she even hits 6. What is toxic about her gameplay is unlike Fiora, a similar top lane carry, Irelia only needs one damage item to burst anybody down. That is of course Sheen/Tri-Force. Why? She benefits from all of it's stats, but so does Fiora. Both have Q dashes that apply on hit effects and have short/reseting cooldowns. Why doesn't Fiora build a tri-force?

Because Fiora needs AD. That is why. The nerf to fix Irelia is simple in my eyes. And would seal her once and for all, also giving her build diversity and forcing her to build damage if she wants to deal damage.

Nerf base AD by 2, putting it in line with Fiora's.

Nerf her Q, to do BONUS Attack Damage scaling, instead of total(Compensating buffs to her early game base damage) forcing her to build AD if she wants it to do damage.

And that is literally it. I feel this would make Sheen not nearly as OP as an opening item, and Tri-Force(As well as Sterrick's Gauge) not nearly as strong on her late game. But would not destroy her Tri-force gameplay, and instead open it up so she has to choose being higher damage or more tanky. As currently. Irelia builds a Tri-Force, then the rest of her items are pure tank.

This creates more of a choice. AD Irelia, Tanky Tri-force Irelia or heck... DPS Irelia.

Sources: http://champion.gg/champion/Irelia http://champion.gg/champion/Fiora http://leagueoflegends.wikia.com/wiki/Irelia http://leagueoflegends.wikia.com/wiki/Fiora