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Unexpected Betrayal
Battle: Target a dishonorable Personality in an army. Cards in that unit cannot perform actions. During battle resolution, the unit's Force is added to your army's total instead of its controller's.
Mirumoto Sensei
Dragon Clan Sensei • After each time a Weapon attaches to a Dragon Clan Samurai you control with no Weapons, attach a +0F/+0C Wakizashi Weapon Item token to him, ignoring restrictions.
Battle: Once per battle, target and bow two Weapons attached to a Samurai you control: Target a Personality opposing the Samurai. Your Samurai issues him an unrefusable challenge.
Overwhelmed
Battle: Target and destroy an unbowed Personality you control at the current battlefield with the highest Force (including ties) of all Personalities you control there: The enemy leader may target and move home exactly 2 units in his current army. If he does not or cannot, he targets and destroys a Personality in his army with the highest Force (including ties) of all Personalities in that army.
Can a dishonored personality targeted with Unexpected Betrayal still issue a challenge using Mirumoto Sensei and bowing the weapons it has attached? Action came from the Sensei but cost was paid by the two weapons on the personality.
On the same note, can the same personality be targeted with Overwhelmed? Action came from the player but cost was paid by the personality.