User blog comment:ClariS/My Champion Remake: Kayle/@comment-72.223.29.65-20120406075925/@comment-4834593-20120406123944

Imagine a LeBlanc with a burst of 2000 damage (very endgame, and maybe fed, I know). She would deal 0 damage against someone with the old shield, but 1300 damage to someone with the new shield.

And the healing is gone. Ever fought against a combo like Soraka+Graves in bot lane? You never win that as long as Soraka is not stupid and puts points in her heal. At level 5, she heals more than 30% of Graves' max health each time, so Graves can endlessy trade and even tower dive, and Soraka will heal him afterwards. Heal is on bot lane very good, maybe even OP, if only one side has it. And Kayle is more of a carry than a support in some ways of playing her. So they could have Kayle carry with heal, and a support with heal, making her unkillable, even without the heal.