- Script
- Sam Humphries (credited)
- Pencils
- Sami Basri (credited) (pages 1-3, 8, 14, 18, 23, 28-30); Nicola Scott (credited) (pages 4-7); Emanuela Lupacchino (credited) (pages 9-12); Ramon Villalobos (credited) (pages 14-17); Ngozi Ukazu (credited) (pages 19-22); Joe Quinones (credited as Joe Quinones) (pages 24-27)
- Inks
- Sami Basri (credited) (pages 1-3, 8, 14, 18, 23, 28-30); Nicola Scott (credited) (pp 4-7); Ray McCarthy (credited) (pages 9-12); Ramon Villalobos (credited) (pages 14-17); Ngozi Ukazu (credited) (pages 19-22); Joe Quinones (credited as Joe Quinones) (pages 24-27)
- Colors
- Hi-Fi (credited) (unknown pages); Annette Kwok (credited) (unknown pages); Tamra Bonvillain (credited) (unknown pages)
- Letters
- Dave Sharpe (credited)
- Genre
- superhero
- Characters
- Harley Quinn; Bernie Beaver; Poison Ivy; Tony Delfin; Goat Boy; Red Tool; Sy Borgman; Coach [Holly Hamden]; Justice League [Batman; Wonder Woman; Superman; Aquaman; Green Lantern [Hal Jordan]]; Skate Sisters; Harlem Harley; Amanda Waller; Suicide Squad [Deadshot; Killer Croc; El Diablo; Katana; Captain Boomerang]; Sharon Quinzel; Summer Gleeson; Man-Bat; Becca; Frank Frank (cameo); Amanda Conner (cameo); Jimmy Palmiotti (cameo); Batgirl [Barbara Gordon] (cameo); Robin [Dick Grayson] (cameo); Two-Face (cameo); Joker (cameo)
- Synopsis
- Feeling ambivalent about celebrating her birthday, Harley has a series of dreams which reunite her with many friends and foes.
- Reprints
- Keywords
- birthdays; dreams; roller skates
- Script
- Sam Humphries (credited)
- Pencils
- Riley Rossmo (credited)
- Inks
- Riley Rossmo (credited)
- Colors
- Ivan Plascencia (credited)
- Letters
- Dave Sharpe (credited)
- Genre
- superhero
- Characters
- Harley Quinn; Punchline; Joker (cameo)
- Synopsis
- Harley is inundated with bad memories from her past after Punchline slashes her throat, but she recovers and vows revenge.
- Reprints
Tie-in to the 2020 Joker War storyline in the Batman family of titles; this story takes place between Batman (DC, 2016 series) #94 and #95.