I think a lot of the talents that come to my mind really depend on how the rest of the world works. So I think several could quickly be discounted if they related to mechanics that are not present in the game. My initial ideas were:

Talent Spotter - Allow the talented individual to perform a ritual to identify any un-triggered talents in another player. Obviously this is not something you want to be able to be performed on every player so the ritual would require various artefacts that would be challenging to obtain. It could also be very draining on the Talent Spotter meaning there would be a cool down on when they could next perform the ritual without impacting their own life. Any talent identified would then show on the character select screen but shrouded in mist and still could not be used unless triggered, it would however protect it from being ‘rebalanced’ by the game engine.

Tracker - Allow the talented individual to more easily track their prey. As long as you went somewhere they had previously been (the location of your maimed corpse perhaps) will can choose to activate your ability, choose your prey and misty clouds marking the direction to their current position will appear. The older the track the fainter and further apart the clouds of mist making it more difficult to find your prey. I originally thought about it showing the actual path they had taken but that would require a lot of data storages you would have to save the routes of every person.

Cupid - Would be able to change another players soul mate. The ritual could be carried out with or without the player in questions permission. The talented individual could either write in the name of another player if they had someone in mind, or choose a different random individual. This could also affect players that had already found their soul mate. I have no idea what soul mates are, how they work, or the effect, but players manipulating the lives of others always sounds fun!

I think the Talent Spotter is my favourite of the three and could make for a very powerful individual.