
Training. Lots and lots of TRAINING. Like combine SEALs, IDF, Spetznaz, and the SPARTANS (the Greek ones) from the age of 12, stir in a near fanatical belief in a warrior goddess, a never-ending overly powerful enemy (dragons), and a license to murder as many of these as you possibly can in a short amount of time and you'd have about the level/intensity of training we're looking at, here. No magical 'awakening', no magical items that do all the work, and no amplifier artifacts. Just good ol' fashioned hard work and study.
Later on he acquired a soul crystal from his deceased sister (that he killed) which belonged to their Grandfather. Though the way I play out soul crystals is more of "hey this is the book of techniques but if you're an unskilled mook then it's useless to you". I.e. to be a warrior like the Dragoon you already have to be an effective fighter etc. Nothing comes for free in my writings lol.
Later on he acquired a soul crystal from his deceased sister (that he killed) which belonged to their Grandfather. Though the way I play out soul crystals is more of "hey this is the book of techniques but if you're an unskilled mook then it's useless to you". I.e. to be a warrior like the Dragoon you already have to be an effective fighter etc. Nothing comes for free in my writings lol.