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1st Appearances 2021
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- 1st appearance of Taegukgi, a Korean superhero
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- 1st cameo appearance of Miracle Molly (tap cover and swipe to view spoiler - feature only available on mobile app)
- Debut of new Scarecrow design
- Back-up story featuring Damian Wayne that will lead-in to April's 'Robin' series
- 🗝 KEY OF THE WEEK: GOTHAM CITY COMICS (MESA, AZ)
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- 1st appearance of a Nihil in comic books
- 1st cameo appearance of the Dengar
- 1st appearance of Ceret and Terec, Jedi twins
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- 1st appearance of Wen Delphis, leader of the Sixth Kin
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- 1st full appearance of Peacekeeper-01
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- 1st appearance Swamp Thing, Levi Kamei, a new Swamp Thing and the first Indian lead character to headline a DC title
- 1st (unknown - mention/cameo) of the Pale Wanderer
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- 1st appearance of Lula Talisola
- 1st appearance of Zeen and Krix
- 1st appearance of Torban aka Buckets of Blood
- Cameo appearance of Marichon Ro, the Eye of the Nihil
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- 1st team appearance of the Valkyries: Jane Foster, Hildegarde, Dani Moonster, unnamed Valkyrie
- 1st appearance of a new Valkyrie, based off of the MCU version of Brunnhilde
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- 1st appearance of the Drengir, a sentient species of plant-life who wish to reap a terrible harvest across the galactic frontier
- The Drengir along with the Nihl are two major antagonists in the High Republic
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- 1st full appearance of Yara Flor, the Brazilian Wonder Woman
- 1st appearance of Caipora
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- 1st appearance of Darcy, an ally of Tim Drake
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- 1st team appearance of the Justice League: Jon Kent (Superman), Tim Fox (Batman), Yara Flor (Wonder Woman), Jo Mullein (Green Lantern), Andy Curry (Aquawoman), Flash (Multiverse)
- 1st team appearance of Hyperclan (Future State): A-Mortal, Armek, Fluxus, Primaid, Tronix, Zenturion, ZuM
- 1st cameo appearance of the Crow King, Merlin
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- 1st appearance Braincells, the advanced offshoot of Brainiac
- 1st appearance of Honest Mary
- 1st appearance of Andrej Trojan
- Reintroduction of the Manhattan Guardian and Shilo Norman, Mister Miracle
- 1st cameo team appearance of the Time Luchadores, Golden Gods of Creon and the Five Empires
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- 1st appearance of Swamp Thing Supreme
- 1st cameo appearance of Woodrue Wilson, the Undying Man
- 1st cameo appearance of the Obsidian Sun
- 1st appearance of Indigo, Vruk, Calla and Heather, allies of Swamp Thing
- 1st cameo appearance of Bougan
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- 1st appearance of Red X in the mainstream DC universe
- 1st appearance of Cybeast, the result of Beast Boy and Cyborg merged into one
- 1st appearance of the Future State Teen Titans: Nightwing, Raven, Crush, Jakeem Thunder, Bunker, Starfire, Red X, Red Arrow
- *Red X appeared in the comic Teen Titans Go #23 (2005) but it was revealed to be a robot
- 1st appearance of Bratgirl, Totally Tubular, Gorilla Gregg and Johnny Chupacabra