Blackmail.
At the start of battle as the attacker, the Sheriff may declare that they want to blackmail the defender. If they declare that they want to blackmail, the Sheriff deals no hits.
(The defender deals hits as normal.) Then, at the end of that battle, if there are any Sheriff warriors in the clearing of battle, the Sheriff may force the defender to move warriors from there, ignoring rule, up to the number of hits they would have dealt
(including extra hits).