@Meddler: What do you think of a shield-version of Hiten Style's passive?

Was doing some jungle Irelia, and I got thinking again on the idea of a future Champion having a variant of Irelia's W, Hiten Style. However, instead of restoring health with every basic attack, this variant would instead give you a very small, non-stacking, short-lived shield on each basic attack. Of course, any active effect would have to be completely different, but the point of it is a Champion who shields himself/herself weakly on every attack.

"Why make this?"

This would be good on a duelist Champion to give them a means of "trade superiority", without giving them sustain. If they get into a slugout with you, they have the advantage of a form of damage-reduction. But if you poke them and get past the shield, the damage sticks.

Would this be workable or obnoxious on a future Champion?