Eren clashed swords with the younger brother of the Holy Emperor. He realized that defeating Uriel too easily would only undermine that the Royal Family's prestige, which was counterproductive to his plans.
He had also noticed that the Holy Emperor had arrived. The clone was standing on a nearby roof with Xiu Ying and the others.
The clone had to jump in to take the lead, but it had become impossible. The sheer impact of their swords clashing was causing destruction in the surroundings.
Eren's clone couldn't afford even the slightest of injury. That's why Eren simply wanted to put on an act between the two of them when fighting with his clone.
Unfortunately, his clone was left out of the false battle because of Uriel.
Eren tried to create some distance between himself and Uriel to grant his clone an opportunity to safely jump in, but Uriel didn't stay away for even a second.
'He's persistent,' Eren thought, frowning.