Request a Homebrew: Thread 2!

[xanendorf]

R: 867
Ok I need help changing an ability for the Witch hunter Inquisitor arch Type. Im working with a pc to make theThe Spell scent ability to work more like tracking (the survival skill) .But im having problems with the DCs.


I already know that its going to be a Spellcraft check to follow the residual path of magic back to the source. (He will only be able to use this when he can detect magic, and at a much higher level)

Some I thought of are...
Negatives for extra casters of the same type casting at any point in the path
Negatives for every hour the spell was cast
Positives for being affected by the spell
Positives for being there when the spell was cast