Karl Kobra <| sep |> I might be in the minority here , but I highly recommend NOT homebrewing classes or races . You can give items or boons or whathaveyou , but the core abilities of a player come from their class and race , and having those be in the hands of the DM makes for a seriously bumpy ride . In our campaign we have a character with a homebrewed race and class , and he ' s not excited to level up at all . He ' s already had to be nerfed once remember that all the core racesclasses underwent extensive testing that you won ' t be able to do , and he doesn ' t have much to look forward to as all the meaningful choices about his power and abilities come from the DM , not him . 5 e is very flexible when it comes to realising concepts , someone above has already suggested the spell Compelled Duel what about a Warlock that has a boon given from his patron that lets him cast it a number of times a day ? Maybe his patron is particularly bloodthirsty and wants to see carnage , or maybe it is a test of the warlocks devotion and courage ? Having the future and power of your entire character be in the hands of the DM is a really awkward power dynamic that , from my experience , doesn ' t offer enough benefits for the drawbacks . As an example , just look through all the posts here talking about The DM nerfed my guy , is that fair ? . Druids losing powers , wizards losing spells or features , Paladin ' s losing auras these are from the core rulebook . Imagine how easier it is as a DM to justify to yourself changing something that you yourself made ? There is no certainty or reliability to a homebrewed character anything can change at any time , and it becomes hard to be attached to something you have no control or agency over . If you ' re certain that the core rules don ' t have what you ' re looking for , I ' d suggest taking a homebrew that already exists and has been playtested . Take a look at Matthew Mercer ' s Blood Hunter class , it might have some of the flavour you ' re after .