Rules Patch: Fear and Terror v8.1

A few of these are taken straight from the recent rumours for Warhammer Fantasy 9th edition.
They are indeed good ideas that re-balance rules that have been mostly nerfed since the beginning of 8th edition, and had caused some spells and items to have become too expensive or useless.
(update: these rumours turned out to be utter fabrication and did not feature in the release of Age of Sigmar at all... but I take my hat off to those who tought them up!)

PROBLEM: Fear and Terror have little impact on the game, mostly due to the ability to re-roll Leadership tests in proximity of the Battle Standard Bearer. The penalties they grant are just fine, but it rarely comes into play.
SOLUTION: Fear tests are taken at a -1 penalty to Leadership, and Terror tests are taken at -2 to Leadership.
In this way, Fear/Terror causing units now suddenly become more risky to fight against, and the psychological impact of having your WS reduced to 1 now and again vs another unit is an effective deterrent during the game, essentially recreating a General's worry that their troop's nerve might not hold against such scary opponents. Additionally, it makes Terror significantly more powerful than Fear, and fittingly so, especially for Monsters and some characters. Also, it makes some spells and items now quite useful.


PROBLEM: many Fear-granting spells and items become useless on units that already benefit from that rule.
SOLUTION: Whenever a unit with the Fear ability gains the same ability from another source, it stacks and grants the Terror ability instead.