EVA-13, also known as Evangelion Unit-13, is a significant character in the Rebuild of Evangelion film series, specifically appearing in Evangelion: 3.0 You Can (Not) Redo. Unlike traditional characters, EVA-13 is a giant biomechanical weapon piloted by Shinji Ikari and Kaworu Nagisa. It plays a pivotal role in the plot as it is involved in the activation of the Fourth Impact, a catastrophic event. Its dual-entry plug system and four arms distinguish it from other Evangelion units, emphasizing its unique and critical function in the storyline.