Druid Spells: Do these have a use case?

[Knuckle]

I'm auditing my spellbook and moving all the crap to the back of the book that will never be used ever again, like regrowth/regen spells since i have BP clicky. But then I start looking at certain spells and wonder, could this ever have a use to me again at 60? Let's go through and decide if there is EVER a mathematically viable use case for the following spells:

Ice
Covers your target in glistening ice, causing 612 damage, and lowering their fire resistance for 18 seconds. 2.44 DPM
Lowers their Fire Resist by 50.

For a raid setting, I cant imagine a 18 second fire resist debuff would be huge in any situation where fire spells wouldn't already be landing well?

The only single situation I can think of, is trying to utilize blizzards mana efficiency as a rain spell to get 3 full max damage waves? Is that even possible? I feel like roots always break with rain spells, and even if they don't im betting on using a level 49 ice nuke not breaking root, then 3 waves of a rain spell, which if it could land on a full damage target is the most efficient evocation nuke in the druids toolkit, but has anyone seen this work effectively where it would actually be useful? I am genuinely curious..

Blizzard
This ties back to my previous comment relating to the Ice spell. Is there a good way to make use of this spell at 60 for any type of encounter that isn't beat out by the consistency of other nukes/dots?

Spirit of Oak
Someone actually gave me a good point for when to use this, so I'll just share because this was about to get tossed to the back of my spellbook. When you are freshly rezzed somewhere that you are going to med, you can pop spirit of oak for the hp/mana regen until you have enough mana to cast POTG. makes great sense.

Repulse vs. Terrorize vs Panic animal
Which combination of these there could have value? Im assuming the level 51 repulse and level 1 panic would be the 2 to keep handy for occasional charm-fear kiting? Not sure when I'd do this at 60 but would love examples or good use cases for the level 1 panic.

That's all I got right now, if you can think of any other less useful druid spells that you found a good use for at 60 I'd like to know where/how. Thanks!