Eren had mentally braced himself for the solitary execution of the Lazarus Project.
Though he had a considerable number of allies and subordinates at his disposal, Eliza had accounted for them, rendering them effectively useless.
The Lazarus Project held different objectives for each side. For Eren, it symbolized the liberation of Reen from Eliza's grasp, while for Eliza, it represented her resurrection to her prime form. The moment either side achieved its goal before the other would tip the balance.
Eren had meticulously planned many aspects, yet uncertainty loomed in his encounters with Eliza. He harbored the belief that he was destined to lose in their impending struggle. Despite her frailty, Eliza remained a formidable adversary, not just a Sage but a one-of-a-kind dragon-type half-blood, renowned as the strongest Titan Slayer in her prime.