It wasn't easy to invite a combatant of the ninth rank. Even a combatant of the ninth rank from one's own clan wouldn't make a move so easily. However, this also depended on whether the benefits were great enough. If the benefits were great enough, a combatant of the ninth rank could also make a move.
Apart from the elves 'life magic, there was no other way to stimulate the growth of plants on the continent. If such a secret technique really existed, those big families would definitely fight for it.
