What power did Feyre actually inherit from the Winter Court?

Alright, hear me out.

We know that Feyre inherited specific powers from each of the High Lords:

Autumn Court — Fire

Spring Court — Shapeshifting

Summer Court — Water manipulation

Winter Court — ???

Now, here's where things get confusing. Tamlin (Spring) can also control wind, so we know there's cross over between courts and elements. But when it comes to Winter, wouldn't ice manipulation just be another form of water manipulation? Does that mean Summer and Winter Courts share the same power, just with a different aesthetic?

Or are we supposed to assume Winter has a unique power that wasn’t clearly explained? Like, snowstorms? Frost? The ability to summon a really fluffy coat?

Honestly, I need answers. What do you guys think? Did SJM just forget about Winter, or is there a deeper meaning behind it?