Revelation*
'Mark of the Seven Sins: Mist of Lust!'
When the butcher activated his Sins series ability-Sin of Lust-the mana in the surroundings began to change. A light mist started lingering in the room. Its density increased slowly throughout the passing moments.
This was the first time he was using his ability on someone.
Unlike the domain of wrath, this ability's effects were hidden. The target of this ability wouldn't know what was going on until it was too late.
The condition for this ability to be triggered was obvious. The butcher needed to feel the sensation of lust while he was having sex. On that note, he was glad that he didn't have to activate the ability by self-harm.
The effects of the ability on the target were even simpler. It turned the butcher's partners into his slaves without infringing on his soul. It only infringed on his target's souls, leaving a permanent mark on them that attested to his ownership.