|River of Sticks|
So, Pactseeker's Blade is a +2 cruel longsword from Blood of the Coven that also counts as cold iron. When it deals damage, it also deals damage to any other enemies that share a bond to the struck target - a shared buff spell, in the same coven, etc.
Question: Say that an Inquisitor uses a Quicken Metamagic Rod to cast Blistering Invective on an enemy party of five, who all share a haste spell. Through Blistering Invective, she succeeds at demoralizing all five enemies. Then she uses her move to get next to an enemy and her standard to attack; she hits and deals damage. Would all five enemies become sickened from cruel?