Simple:
* The superhero wore a flowing red cape.
* The old woman wrapped herself in a woolen cape against the cold.
* The wind whipped the cape around the knight's shoulders.
Descriptive:
* The crimson cape billowed behind her as she ran, catching the sunlight like a fiery flag.
* The tattered cape, once a symbol of his father's authority, now hung loosely on his thin frame.
* The detective's trench coat, complete with a dark, rain-repellent cape, made him look like a character out of a noir film.
Figurative:
* The city's skyline, with its towering skyscrapers, seemed to be draped in a velvet cape of twilight.
* The news of her sudden departure left a shroud of sadness, like a heavy cape, over the entire community.
Remember, the best way to use "cape" in a sentence depends on the context and the specific meaning you want to convey.