With the release of such a gorgeous skin I have seen in a long time, I assume (or demand) you buff Kayle. She is usually the last pick for supports. Completely overshadowed by Janna.
Suggestions
Increased Flat Health or Health per second. This way you can rush Rageblade without being so squishy.
Increase Reckoning Damage or Slow
Increase her E's duration or make it a toggle, but with high Mana Cost so it isnt spammable early, maybe mid game.
Increase her Ultimate Duration to 3 / 3.5 / 4 seconds or reduced CC.

One or Two of these suggestions and Kayle will be a bit more Viable.

Well hopefully they're coming this next patch, but don't quote me on that. Nothing was said when, except for what's changing.

Bad english is bad.