In my case - There's only one Necromancer, so having Ossuaries everywhere isn't much of an advantage, especially considering they were never intended to raise massive undead armies. And how worship of Mot is now strongly discouraged, leaving body remnants out in the open like that would be seen as bad. I'll keep the Bloodthirsty con, but I'd like to replace my pro with:

Songbird Communiques: The warlords and skirmishes of the Fulmen Nati are masters of moving and communicating as widespread guerilla groups moving unseen in the underbrush. One of their more successful strategic advantages has been their successful domestication and breeding of Songbirds, used for surveillance, reconnaissance, and communication across both short and vast distances. Sometimes the only warning you have of a Nati ambush will be the low, pleasant, burbling chirps of unseen birds.