Depending on the Shield. I could see ways for an Spirit/Force shield to protect against those things.
True but you run into Harry's problem with his new shield. He's likely having to allocate extra shifts for each thing he wants protected from beyond kinetic force. And I still wouldn't allow protecting from light (if you still want to see without also making it a veil and paying double shifts) or air (if you still wanted to breathe inside a dome shield).
Use Spirit to go to the NeverNever.
Thaumaturgy, not evocation (YW282). Not bad thinking though. Air or water to smother the flames or fire to directly draw the heat from the flames (yeah, it's a bit kemmlerian in application but I might be able to be talked into it because of multiple uses by harry to freeze water with a fire spell). Spirit
evocation though? Can't think of anything for either spirit or earth off the top of my head that doesn't involve ripping yourself an escape route.
Not even water can do that, right?
Earth can. Once it's in place, an earth wall is just plain, ordinary dirt.
Use Spirit to backtrack the magic to its source?
Again, Thaumaturgy, not evocation (Divination, YW275). And I'm not even sure what good being able to locate the source of magic would do to get you down or unpinned/squashed dead . Being able to retaliate with Earth solves the issue on either count. Air could be used to actually fly in low-G but I wouldn't allow shifts for duration or anything beyond extremely simple actions. Fire would be only as useful as water or spirit though in that it could really only be used to block LoS until the duration shifts ran out or attack in return at some serious negatives once the Squashed/Floating aspect gets compelled.
Yeah, there's more than one way to deal with almost anything you can think up but that doesn't mean there's always a way for every element.
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