I still find him unviable.
Being a melee fighter plus being as fragile as ranged demigods like Regulus, Torch Bearer or QoT is a no-win condition for this demigod. He just has no redeeming qualities. If at least he was fast and packed more punch, but he is rather slow at start (6.0 is slow for this kind of demigod) and hits as hard as any other melee demigod, but lacks their HP, Armor and/or Generals capabilities.
On top of all this he's as mana hungry or more than the most mana intensive TB, QoT or Regulus. He desperately needs a Mana Regen Favor Item as "Blade of the Serpent" or "Essence of Magic", but going for anything but "Blood of the Fallen" is practically suicidal. Any decent team will keep enemy DA well away from Flags or any kind of combat for the first 6-8 levels if DA doesn't pick BotF and wants to stay alive.
The last nail in his coffin is his cooldowns, at least if they were shorter u could go a glass cannon build and spam his (terribly mana intensive) abilities to take down towers or assassinate enemy demigods, but they're so long by the time they're recharged that enemy general or tower has recovered all the damage u inflicted to him.
I'm gonna try a BotF all passive-speed skills and see if that's worth anything, so far any other build isn't really competitive against pretty much anything but noobs.