I have always tried to maintain a strict neutrality when it comes to tribal matters, but then again, I have never had an offer this tempting from someone as respectable as Mister Nerva. Not only has he offered to provide me with test subjects, but he has also expressed a mutual interest in investigating the obelisks. All he asks from me is that I provide him with "reliable council."
I would trust few tribes to be able to make good on such promises, but Mister Nerva's New Legion is perhaps the most powerful tribe on the island. Indeed, if they maintain their current trajectory, they may be the only powerful tribe on the island.
His offer is worth considering, at the very least.