NOTE: This review is NOT the D&D 5E Unearthed Arcana Rune Knight Fighter. This is a DMs Guild Subclass from the book Xanathar’s Lost Notes to Everything Else.
Otherwise… let’s continue!
In 2017, the DMs Guild Adepts produced Xanathar’s Guide to Everything Else. Here is a character build using that information on this Fighter subclass created by Rudy Rutenberg.