S.Links, my good man.
That, and fusion allows you to get those abilities on more powerful personas anyway (also, inheritance and combination can lead to you getting a more powerful version of a base skill)
Think of it as pokemon. Except with chicks in bondage.
Equip a good persona that has fire resistance. I forget which ones happen to have that at this point, but I'm pretty sure there's at least one you can fuse with an ice skill that has resistance/absorbtion to fire. Don't worry about Yosuke, he likes being out cold.
This. Yukiko is the Matador of P4. Fortunately, none of the post-matador stuff happens this time around. MOSTLY.