Fire // Ice is listed as having a casting cost of 1U and is listed under blue cards when I sort by color. I'm not sure how it could be designated as having two casting costs but I think it should at least be listed under the gold cards. Perhaps make it a casting cost of 1(U/R) ?

A cost of 1(U/R) would be even more wrong. It would be cool though if you could somehow show both costs.