Deafening spirit
Negate and discard the last good enhancement played this battle. You may treat this as an evil character until the end of this battle.
My question is this if I go out with A hero that negates evil characters and my opponent plays this enhancement and chooses to treat this enhancement as an evil character. Is he then prevented from negating the last good enhancement?
Another question. If he negates the last good enhancement and treats the enhancement as an evil character is the card no longer targetable as an enhancement with regular initiative? Or do you now have to use and interrupt the battle card? What about an interrupt the last enhancement?
1. Prevent doesn't work retroactively.
2. Correct, it would not be targetable as an enhancement.
3. Interrupt the battle would undo it as long as Deafening Spirit is the last card your opponent played.
4. I could potentially see it being ruled that since it was an enhancement when it was played, "interrupt the last enhancement played" would hit it. However, I would rule that it would not be able to hit it since Deafening Spirit is no longer an enhancement at all.