But If you are a wizard you have to think about both. If you belong to prepared casters you only have to worry about spells prepared. I find this division clears up questions like "I'm a cleric and there's nothing written in the phb about what spells I know" and "I'm a ranger and there's nothing in the phb about how I prepare spells", since if you belong to spontaneous casters you only have to worry about spells known. There are prepared casters, who know all of the spells on their list but can only have a few of them prepared at a time (lvl or halflvl +casting ability) and then there are wizards, who don't know all of their spell list by default (though they eventually can) and also have to prepare a subset of the spells they know each day. You also divide casters into two groups where I usually think about three, there are spontaneous casters, who know a few spells and can cast all of them all the time. Designing a functional class demands extensive playtesting. p>Dungeons and Dragons Fifth Edition, the most recent incarnation of the genre-defining tabletop RPG, was first released back in 2014.Over the last five years, a steady stream of new books and updates have added depth to its character options. One important principle I don't see you mention in there (but you still seem to follow in your example classes) is that at every level a class should gain something new, whether it be a class feature or a new level of spells. Making a class is no simple task, and completing its creation can take months- even a year or more.