This was interesting. A threat, a chance to fight. His own mangekyou was active and bright. This Itachi was far gone in--illness, it seemed like. Some internal hurt. And burdened by his past, on top of all of that. Hmm.

"I'll tell you a secret. I am like him." His gaze didn't shift. "Very much like him, I suspect. But my choices weren't the same. So." He shrugged.