Would Allowing Kayle to Move Through Units Upset Balance?

If there is one thing I don't like about Kayle, it's her passive. It reduces armor and magic resistance for a minuscule amount each hit and caps at five hits. For most champions, you're going to end up doing a maximum of about 6% more damage, but since you've had to attack five times to achieve that, the fight is already going to be over before you can take advantage of it, unless the enemy has a LOT of health.

Additionally, one thing that annoys me when playing Kayle is that she is airborne, and yet those little minions walking below her feet somehow manage to block her movement despite logic dictating that they should not.

So, I think that it would be fair to add the ability to move through units to Kayle's passive, while keeping the old passive intact due to the fact that the ability to move through units is rarely imperative, making having solely it as a passive still lackluster, as well as to prevent breaking anyone's niche play-style.