Hmm, strange it still works for me, the only explanation would be if you deleted and renamed it, then my computer would think it's still there.
Anyway, Although Boo's ability has the most writing it's the only Ability I don't fully understand.
How long does he stay invisible? Just till the end of the Year? or for 2 turns if he decides to go invisible starting in the fall? or can he stay invisible for like 10 turns and walk all the way down to Peach's castle and go "Here I am", then wait one year and go invisible again?
The turn he goes invisible can he still perform other moves? or is turning invisible his move for that turn? if it is that seems like a waste since if he only stays invisible for the year, that doesn't give him the ability to walk through people like you suggest, since he'll go invisible, then take one step onto a person and become visible again.
Can he still use Support moves while he's invisible? or just walk around?
Suppose I decide to sacrifice King Boo during my build phase to rebuild someone else's unit, do I get to build a unit to replace it? For example, I have 3 centers, 2 Armies and 1 King Boo, If I Sacrifice King Boo to Rebuild Mario I'd be down to only 2 Armies and still 3 Centers, So do I get an Extra build the build phase I sacrificed him? Also what happens if I decide to be a Jerk? I tell my supposed Ally I'm going to rebuild his Hero, and then I conveniently forget and not sacrifice my King Boo, that way the unsuspecting Ally tries to rebuild his hero and just wastes one of his builds that phase since I didn't sacrifice him. Or even worse the opposite happens, I sacrifice to rebuild someone and they decide to not take advantage of it, making me have just sacrificed my hero for no reason at all.
Factoring in special powers, certain countries I still think are quite worse than most.
Boo has a good opening position, but is too close to Bowser and Guppy, whose powers reduce Boo to not being guaranteed a center the first year, whereas before he was guaranteed 2, now he can't get anything unless people let him.
Mario is guaranteed 3 Build the first year and is the only country that can guarantee 3 Builds.
Donkey Kong seems pretty weakly positioned with a power that's difficult to use effectively, and probably only captures Burning Tide Coast the first year unless someone volunteers to let him into a center.
If I was a betting man I'd say Mario walks away with the win, with Wario closely behind in second place. While Guppy becomes a thorn in Boo's side and just keeps whizzing around that cape stealing Boo's and Yoshi's home centers.