First Mastery / Second Mastery / Final Mastery

Best: Offensive accessory
The Final Mastery is the best offensive accessory in the game. There are three tiers of the Mastery accessory, each one further increasing the amount of time you can spend in Swordfighter form, by reducing the drain on your energy bar while using this finite resource. Considering how invaluable Swordfighter form becomes as you face off against some of the game’s toughest bosses, you’ll absolutely want to snag this.
Each tier of Mastery accessory is awarded as you work your way through the Slumber Dojo in Kakariko Village, with the Final Mastery accessory being your reward for completing all 14 fights. This is quite a challenge, as you’ll be timed on each one—but keep at it and you’ll eventually claim this exceptional accessory for yourself.