All of the advice that has been offered will give you the results that you're hoping for... with one general guideline. The equipment used runs the gamut from a Box blade and FEL to a Harley landscape rake and everything in-between.
And they'll all do the job of leveling your yard; eventually. The guideline in question is -- at what stage of development is your yard -- right now? Is it brushy, weedy or already seeded with grass that may or may not fully cover the yard? How consistent or inconsistent is the grade/slope or terrain of the area currently?
If you recognize where you're at; you'll have a much better idea of how you'll need to proceed to get to where you want to go.
The further you are away from having a good, level seedbed the more likely it is that you'll need to use a implement like a box blade, tiller, disc harrow or the like that will break down the existing vegetation and soils; and leave you with workable dirt.
From that point, you can then move on to using a landscape rake, Harley rake or towed PVC pipe or chain link fence to smooth things out even further.
The long and short of this is -- use the tool that best fits the current stage of your yard development and move on to the next implement as you work to a plantable seed bed.
That said; I've put in yards with just a tiller and chain-link fence drag and a 3-wheeler.
Akfish