Simple weapon master

While wielding a simple melee weapon you are proficient with, once per day you may use your bonus action to hone your mastery with the weapon. For the next minute, when you use your action to Attack with a simple melee weapon, you gain the benefit of Extra Attack. If the wielder already has the benefit of Extra Attack, they may instead make a single attack with their bonus action for the duration of the minute. Once you use this ability, you can not do so again until you complete a long rest.