[Twan]

I think 2, probably not 3, perhaps 4 ("the teleporters control the castle province but the army move").

(iirc I've tried to intercept one of your armies in 300mp some turns ago, taking a province between your starting position and your destination in magical phase, but your army managed to reach the destination anyway - but I may be wrong if you had another army I couldn't see with same kind of troops).