A spell as you call it doesn't actually require reagents, or any actual props. The one thing that is required though is yourself, will, faith, focus, and total self knowledge and self mastery. These things are hard to get, and are the "real" basics which those here do not speak of, because few possess such and even fewer still really know how to attain. Hence such things won't be spoken of for the most part.
Want a spell that works, go out for a walk and you'll have a pretty good idea as to how at least part of the process works. Take care.