Oliver acts as a mirror for both sisters. He is trying to prove he has moved past his island crucible to become a "better man" by sponsoring a "Cash for Guns" event rather than just using violence.
Let me know which you want to dive into next. Crucible | Arrowverse Wiki | Fandom [S2E4] Crucible
The deepest irony is found in . While he preaches about surviving the crucible and helping the city, the episode's end reveals he is the one lighting the fires. As Brother Blood , he is creating a literal army of survivors by injecting "recruits" with a serum (the "Mirakuru" prototype), killing those who aren't "strong" enough to survive his artificial crucible. If you'd like to explore this further, I can: Oliver acts as a mirror for both sisters
An illegal gun-runner who seized power in the Glades following the "Undertaking". He represents the "impurities" the city must burn away to survive. The Twist of the "Savior" Crucible | Arrowverse Wiki | Fandom The deepest
The episode’s major revelation is that the mystery vigilante is Sara, who survived the Queen’s Gambit . Her crucible—revealed in flashbacks to be the freighter Amazo —turned her into a hardened warrior. She struggles with "loving the fire," feeling she cannot return to a normal life after the things she has done.