Bag eh Zambeez! Take yer pick!
The core of the deck revolves around Flooding yourself and Necromancy-ing a Titan. Oath provides you with long-term card advantage and eventual tutoring. Sculler and Rotting Rats help you stave off attackers and can deny important spells, while the Captains turn these into a decent early game threat. Dralnu offers access to an alternate win condition in Psychic Spiral.
I need help with the balance of removal and the balance of lands. I'm considering pulling the captains--and maybe the whole zombie cavalcade--in favor of one and two-drops that can better delay rather than threaten to win the game. Hopefully I can get the deck to flow well enough that I don't need Dralnu/Spiral.
That said, I think a Dralnu-based deck could work well. It seems the deck wants to do either of two things: either cheaper black removal and counterspells with Dralnu that scales with my graveyard into a late game spiral, or a more enchantment-based removal suite focused on Sun Titan and maybe Auramancer. Which should I use? I think it's a question of what fits better with my zombie-based early game.
I also have a question: If I use Sun Titan to put Necromancy on the field, can I do so "as an instant" and, for example, necro a Grave Titan with haste to get 4 zombies instead of just 2?
Thanks for the help!
P.S The land is focused on getting early Chronic Floodings and Tidehollow Scullers, because the deck seems to do better when I get one of those early on.