In many fictions, elves are initially cautious when interacting with humans. They might keep their distance because they see humans as clumsy or too different from them in nature.
In a Christmas story, Santa's elves are usually busy making toys for children. They work hard to ensure there are enough gifts for everyone on Christmas Day.
Another way they could use their magic is by communicating with other magical beings. They could send out magical signals to the friendly creatures in the area, like the owls or the garden gnomes. The owls could then fly around and create a distraction, while the gnomes could help the elves dig secret tunnels for Harry's escape. The house - elves' magic is not as well - known as wizard magic, but it is very powerful in its own way and can be used creatively for the rescue.
Some people might hate elves in fantasy novels because they often seem too perfect. They are usually depicted as beautiful, highly intelligent, and with superior archery skills. This perfection can make them feel unrelatable, like they're an unrealistic ideal that overshadows other more interesting, flawed characters.
Elves could also be the ones who test the God of War. They might set up trials or challenges for him to prove his worthiness. Maybe they want to ensure that the God of War is not a threat to their way of life. So, they use their intelligence and magic to create difficult situations for the God of War to overcome, and in the process, he grows stronger and more respected by the elves.