Essentially amounts to a team game, where one nation has the Pretender, and the other "disciple" nation has the prophet. It allows the teams to benefit from the presence of 2 different nations together, so the strategies can be quite diverse, as one would imagine.

The only downside I foresee, is if we end up with another 6 player game. In that case, we end up with an odd number of teams, which get's, well, odd. May be wiser for a normal game under those circumstances. An 8 player game would make it more doable I believe.