Replace Manes with Lu Bu. Manes is not as good as she seems, her cooldowns are far too long, unless you're fighting something that'll one shot your team 1 by 1 like light catastrophe and you already have Osiris for heals.

If you plan to get any Miracle Tickets for your dark team, getting Hercules' axe could be a potential waste of resource as darks have many def down himes. For example, if you had Thanatos, along with Nyar and Lu Bu, youd hit def cap without Hercules and be able to use Shingen with Black Prop (if you still wanted too.) Not that I'm saying to go straight for Thanatos but it's one of the possibilities if you plan to get a ticket for your dark team.