There's a new Unearthed Arcana in town! "The bard receives a new Bardic College feature: the College of Eloquence. Additionally, the paladin gains a new Sacred Oath feature: the Oath of Heroism."
Hercules goes into rage to fight his wife and kids (and maybe a music teacher), but not against a hydra or giants? That doesn't speak well of the 3rd party product.
There is one story in Greek mythology where Herc is described as going into a rage: the one where he kills his wife and kids. As soon as he got the hydra's blood, he lead off by shooting things with his arrows unless grappling is required.WTF? Rage works for like it does for any Barbarian subrace basically.