I’m sure that what Otto meant by that was that he would save the club, but make them suffer. How you arrive at that is a convoluted mess, but let’s recap for clarity: Otto wants SAMCRO members to suffer because Bobby slept with his wife, and Jax basically got Luanne killed because he put the beat down on George Caruso. So, Otto wants revenge. He gets that by jerking himself off to spiritual enlightenment then convincing Tara to bring in Luanne’s crucifix so that he can kill a nurse with it. Why? Because the crucifix makes Tara an accessory to murder, which puts her at risk for jail time AND puts a target on both her and Jax’s back should the friends/family of the dead nurse want to take their revenge. Also the accessory to murder rap will cost Tara the surgeon position. But there are quite a few logical leaps that you have to make to get there, and you’d think there’d be a more direct means through which Otto could get back at the club. But hey! Sutter loves thinking three steps ahead, even if he has to clumsily force the narrative.