The Reaper appears in “Wizard” asking Finn and Jake if they want wizard powers for free. Jake whispers to Finn that considering the Reaper is unattractive, he has to be assertive and ask for more than free wizard powers. Finn does so, so Reaper takes off his own arm, turns it into a keyring and offers that to him too. Finn “begrudgingly accepts his offer” and Reaper creates a door that leads Finn and Jake to the place where they learn magical powers (Finn never actually receives the keychain, probably because he and Jake were too excited to get their magic powers). At the end of the episode he offers Finn and Jake a free demon heart. Reaper also appears in “Dungeon” in which he challenges Jake to a duel and asks for his weapon of choice. Jake chooses sandwich.