Hunting

Review of hunting rules, to see if the distinction between Hunting, Herd and hunting-related powers can be improved and rebalanced.

http://anydice.com/program/acb3:

function: ROLL:s opposed by OPP:s {  result: ROLL - [highest of 0 and OPP]  }
function: N:n diff D:n {  result: Nd{0,0:D-2,1:11-D}  }

output [[4 diff 6] diff 7] named "layered (model)"

output [4 diff 6]*2 named "direct (pool 4)"
output [6 diff 6]*2 named "direct (pool 6)"
output [8 diff 6]*2 named "direct (pool 8)"