Looking at this one now, the two do seem quite distinct.
I was thinking of something similar a while back. I wanted to call it "Rime Frost" or "Hoar Frost"
Hard Rime on Wikipedia
Seems fitting I think.
Good luck on your card creation. If it pans out and reaches crucible let me know so I can give it my vote. More non-destructive PC alternatives would make a nice addition to the game and it fits the water theme quite well I think.
Thanks for the support
Looking at the already in-game card names, the vocabulary is relatively simple. I'll admit I had to look this one up (although it rang some bells afterward).
maybe something with frostbite in the name, although as sno says, it's not very poetic sounding
(don't know how to double quote)
@SnoWeb, I like your last suggestion XD