Hour three of Crisis on Infinite Earths offered a shocking Green Arrow twist by turning Oliver Queen (Stephen Amell) into the Spectre from DC Comics, but what does that mean for the rest of his arc in the Arrowverse crossover? The Spectre is one of DC's most powerful heroes, and a character with a key role in the comic book version of Crisis on Infinite Earths. Will the events from the comic be repeated in the upcoming Arrow episode of the crossover?
Following Oliver's death at the hands of the shadow demons in hour one, Mia (Katherine McNamara), Barry (Grant Gustin), and White Canary (Caity Lotz) teamed up with Constantine (Matt Ryan) to bring Oliver back with the Lazarus Pits. They succeeded in reviving him, but failed to restore his soul. After a brief meeting with Lucifer (Tom Ellis) from Earth-666, they traveled to Purgatory and tried to reunite Oliver's soul with his body. Before this could happen, Jim Corrigan (Stephen Lobo) arrived and told Oliver that he would have to "become something else" to save the multiverse. In that moment, Oliver was transformed into the Spectre.
What does being the Spectre mean for Oliver's story in Crisis on Infinite Earths? The answer to this question may be found in the comics. The beginning of his story comes from a Green Lantern comic, but the second half may be borrowed from the Spectre himself. Since Spectre played an integral part in the defeat of the Anti-Monitor (LaMonica Garrett), Oliver's arc in the remaining episodes of Crisis may be pulled from his arc.
In the comics, the heroes wrongly believe that they've defeated the Anti-Monitor, and it's the Spectre who lets them know that the Anti-Monitor still lives. The Spectre leads them to the beginning of time, where the final battle with the Anti-Monitor takes place. Spectre battles the Anti-Monitor in single combat, and the clash of two of the most powerful beings in the universe causes all timelines to merge. This irreversibly changed the DC Universe, but regardless, it was still a victory for the heroes.
Some version of this could be translated to the Arrowverse. Oliver could arrive at the Vanishing Point where the seven paragons are gathered, and tell them what they need to do. This could set up a comic-accurate showdown between the Spectre and the Anti-Monitor. If Crisis is indeed Oliver's swan song in the Arrowverse, it would seem only fitting for his character to be the one who ultimately saves the multiverse and stops the Anti-Monitor.