I think it's probably too early for you to be thinking about a specialist landscape lens or fast prime at this point. You might actually be better served to find a used 18-55 kit lens, while you learn your way around the camera and glass and landscape technique, and which focal lengths do what.

In my opinion, a "body only" option is generally not so much for a newb to pick a lens *à la carte*, so much as they are for folks who already have their glass to not end up with multiple kit lenses. A kit lens gives you something cheap to shoot with while you learn the ins and outs of focal length, max aperture, IS, and USM, and [general shooting technique][1], so you've got time to gain enough experience to properly choose your first lens and save up for it.

With landscape shooting, night-time and low-light photography typically requires a sturdy **tripod**, rather than a fast lens with a larger maximum aperture.

And if you want a wider vista in the viewfinder, then a 24mm lens is still not particularly wide, yielding only a 35mm-equivalency on 1.6x crop.  24mm is really only wide on a full frame camera.  The EF-S 24mm f/2.8 STM pancake lens is a good purchase and good quality, but is more of a general-purpose, walkaround, street-shooting lens, rather than a dedicated landscape lens.

The low-cost (~$300) beginner's ultrawide-on-a-crop is probably the EF-S 10-18 IS STM. The general-purpose walkaround zoom that goes wide on a crop is the EF-S 15-85. The fast wide zoom for crop is the EF-S 17-55/2.8. Both of these lenses are in the $800 price range.  And an 18-135 (as you know) gives you a much larger zoom range to work with, and costs less than either.  So, you need to *really* know what your priorities and budget are going into lens shopping.  Limiting yourself to only the $250 and under fast primes in Canon's lineup may not be getting you what you really want, here.

See also: https://photo.stackexchange.com/questions/8518


  [1]: https://photo.stackexchange.com/questions/50006/why-are-my-photos-not-crisp