In one story, dealing with fire magic, it was "set something on fire.' In another, it was "provide a mysterious door."
In one in progress, the main characters are going into a magical woods with a justly dark reputation. And indeed, many mysterious things are going to happen.
Which raises the temptation of just being random. I could throw in golden lilies in a clearing, a silver deer, an animated shadow. . . .
Except that in the end I have to pull it all together. Chandler described it as the rule for a certain, low level of pure action pulp.
I think the story's going to be a psychomachia -- no, not a soul battle, a soul journey. Which means I need to develop the characters further to see what sorts of drama would develop them. sigh