Why does my Succubus rarely seduce??

[velk]

I tried the tartarian chains assassination before ( I used the flying demonbred assassin hero from abyssia not a succubus though) and if I remember correctly, if the charm works the commander attacks his own province that turn.

I noticed some unusual results them in the arena though - if you enslave the returning arena champion he retains the trident and your champion gets no experience. (Although the reigning champ does attack the province he came from that turn as well, which was nice, I thought he was going to disappear)