As far as I know, GoT is one of the few mediums where Magic is genuinely fucking mindblowing. Most of the acts of the Red God, mindblowing. That is what magic is meant to be, it's meant to be...fucking, magical. You know, like you couldn't literally do it for real with any resource you have, hence it has to be magic, and the people who do it aren't just some Mage, they're fucking legends in their own right in some way for being able to perform it. An Arthur C. Clarke quote comes to mind in relevance to this, but still, it's an incredibly feared and scary thing to see, because in a world that is for the most part, much like Medieval England, plus dragons and other crazy stuff, you have that factor in.