Autobots at Garrus 9 for her actions. Released by a reluctant Fortress Maximus during a Decepticon attack to buy time for Jetfire's team to get rid of the Monstructor components, her power level appears much higher than a normal Autobot, as she is seen taking on all of the Combaticons single handed and winning, although unable to stop their kidnapping of the Monstructor components due to a teleporter based escape plan. She is classified as a "level 9" threat, the only Autobot of that power level present in the prison during the assault. Realizing there is a link between her and the Monstructor Transformers, as they were all created by Jhiaxus, Maximus and Jetfire release her to track them down. Throughout the Revelations arc, Arcee hunts for Jhiaxus to get her revenge, finally confronting him in Spotlight: Sideswipe. She is informed by Hardhead that Jhiaxus cannot be destroyed forever as he is bound to the Dead Universe; she is pleased by this, as it means she has the chance to kill him, over and over, forever. In Heart of Darkness, it is revealed that she and Hardhead had remained on Garrus Prime to guard the portal to the Dead Universe and continue torturing Jhiaxus. When the D-Void called the entire population of the planet into the portal to feed on, Arcee was overwhelmed, but Hardhead, vaccinated against the call by his exposure to dead universe energy during revelations, held her back until the portal closed. Since then, they had been exploring the remains of a mysterious dead civilization uncovered by the portal closing. When Galvatron and the seekers arrived to investigate, Arcee and Hardhead engaged them and despite initial success including the severe wounding of Galvatron, became outmatched when Galvatron used the Heart of Darkness to heal himself and attack them, and Hardhead told her to run and get help. Cyclonus blasted a bridge out from under her, and left her for dead, but she was later seen pulling herself back out of the pit. Later on, Arcee joins with Prowl, becoming his personal assassin whom he deploys to murder Ratbat in order to keep peace on a post-war Cybertron. Prowl dispatches her to kill several more Decepticons, however some of these deaths are faked as a part of a conspiracy to rile up the many Decepticons on Cybertron into a frenzy against the provisional Autobot government. It is later