You mean not enough of us use ice magic? So...if that were the case, maybe learning it would help...

[ chiaki nods, about to launch into one of her patented confusing video game references that her classmates just kind of Live With. ]

Right. There's always elemental spirits, and when one of them gets trapped by the big bad guy in their temple, the only way to fix things is to go in and free them...but I don't know where the ice temple is. It's too bad we can't consult the oracle...