[@CoxzemuN]
1. Stats or not I like characters to have a role in the party. Strengths and weaknesses. What have they learnt and done up until now. Otherwise despite history and differences everyone ends up doing everything. 

2. Problem with two is if you start the journey not knowing how to fire a bow or swing a sword, just because you get into a few scraps, a year later when you are trying to save the world, you still won't be good at firing a bow or swinging a sword. 

3. Half demons! Or at least demon blood, since you mentioned they existed.

4. Tur'tan. Love the starting idea, but if this green plague is such a worry that all clans and towns have been notified, why would they send a bunch of ill-equipped untrained investigators? For one reason or another we would have to be suited to the job and also be known to or recognised by the authority of the town we are leaving.


Sorry if my input doesn't help, lol :/ I will still go along with what ever you decide :)