Four images

Why is Su Rong here? Alexander was bewildered, his focus entirely absorbed by the scene playing out before him. 

Then, he noticed something amiss. The aura emanating from Su Rong in the footage far surpassed that of Kassadin. Unbelievably, Su Rong was a Ghost Emperor!

Moreover, the Su Rong in the scene had a vastly different demeanor than the one he knew. The Su Rong he was acquainted with was gentle, amiable, and empathetic. 

In contrast, the one on-screen was cold and stern, emitting an aura of solemnity and killing intent. Her armor was not made of magma but resembled the black armor worn by hell warriors.

Could this be someone else who just looked strikingly like Su Rong? Or perhaps something had happened to Su Rong to transform her from a Ghost Emperor into the person he was familiar with?