Once again, the Life faction gets the first turn. The Amulet already provides 50% protection against creatures of the Haven faction and its spells. Then, all these slowing effects, and the debuff is removed with Exorcism.
It all depends on morale. Haven can also gain the upper hand... But that's not the point. Arguing about this is actually pointless, and there's no need for it. I'm not claiming that Life will lose to Haven.
P.S., although our verbal sparring is also useful!