BBEG build need help

[Damocles23]

This is it. My campaign is going to end and i want to plan ahead with the final opponent, spoilers just in case my player see this thread:

Final Boss spoiler:

The final boss is going to be a level 13 Oracle with the Bones Mistery, in a desecrated area, helped by three zombie dragons or giants (still not sure about it), i need some help with the mysteries and spell selection beyond 4th level to make it interesting, also i'm not sure if making him a battle oracle or just focus on casting or an hybrid of the two.

[Daelen]

For the three zombies, I'd say mix it up. One Giant and two Dragons would be my choice for that. I'd choose things like Armor of Bones, Death's Touch, Bleeding Wounds and Soul Siphon, and focus on going into melee and mixing it up. Not sure if you have a race chosen but I've always felt the Dhampir made damn good Bones Oracles. As for spells, if you take my advice and go melee, choose spells that buff you and your undead minions.