Element Lad elected leader, Dream Girl becomes deputy. [LEGION #306]
The LSH learn from the Prophet about the Omen. [LEGION #307-310]
Brainiac 5 destroys and rebuilds the LSH headquarters. [LEGION #311]
The LSH and LSV have an all out battle. [LEGION v.3 #1-5]
Saturn Girl delivers her child, Graym Ranzz. [LEGION #3]
Karate Kid killed in battle. [LEGION #4]
The Legion of Substitute Heroes and Matter-Eater Lad defeat Pulsar Stargrave on the planet Bismoll, after refurbished models of Computo had summoned him there to conquer the planet. [Legion of Substitute Heroes Special #1]
The LSH learns that the Dark Circle is actually just five sentients with a multitude of clones of themselves, and the Legion prevents the Dark Circle from using Dev-Em's clones to add an army of Kryptonians to the Dark Circle's power. The Dark Circle ends as every single clone falls dead. [TALES OF LSH #324-325]
Element Lad is re-elected leader, while Saturn Girl, Lightning Lad, and Cosmic Boy resign as active members of the Legion, taking reservist status. [LEGION #12]
Dawnstar is recruited by Harbinger to help the Monitor during the Crisis on Infinite Earths. As the LSH searches for Dawnstar, they encounter a group of woolly mammoths brought to Metropolis through a time warp. Brainiac 5 discovers that antimatter is approaching Earth. Dawnstar (along with Superman of Earth-2 and Solovar of Gorilla City) is sent to the 30th century of the alternate timeline of Earth-1 known as the Great Disaster, where they meet Kamandi and protect the Monitor's machine from shadow demons. Meanwhile, the Legion is attempting to stop the antimatter from reaching Earth. While helping the Legion evacuate part of England, Legion reservist Kid Psycho is killed by antimatter. The antimatter threat ends when Earth-1 is placed along with Earth-2 into a protective netherverse created with the Monitor's death, an event that occurs throughout time. The Legionnaires are amongst the heroes of Earth-1 and Earth-2 gathered into the Monitor's satellite in 1985, where the threat of the Anti-Monitor is explained. The Legion witnesses strange time warps on Earth-1 and Earth-2, and Brainiac 5 realizes that the two universes are coming together as the vibrations separating them slow down, and that if they can't merge them properly, they'll both be destroyed. The Legion agrees to help fight the Anti-Monitor. As part of a mission to bring Earth-4, Earth-S, and Earth-X into the netherverse, Blok is sent to Earth-4, where he meets the Sentinels of Justice, who are manipulated by the Psycho Pirate. Afterward, the Legion returns to the 30th century. Note: As revealed in LSH #18, the Infinite Man has begun absorbing the energies of the Crisis at this time, which causes the Legion and most people of the 30th century to forget that the Crisis is occurring in their time at all. This explains why the Legion returns to their own time and stays for weeks before returning instead of continually remaining in the 20th century to help fight the Anti-Monitor there. [CRISIS #1-7]
Timber Wolf and the Sensei travel to the brutal planet Lythyl on a mission as part of a last request of Karate Kid; there, they bring back a young man named Myg. [Legion of Super-Heroes v3 #13]
The Legion of Substitute Heroes is disbanded by Polar Boy. At the first open membership tryouts in years, Quislet, Tellus, Magnetic Kid, Polar Boy, and Sensor Girl join the LSH. During a training mission with Wildfire, the five new Legionnaires are abducted by Doctor Regulus. After a group of Legionnaires come to the new members' rescue, Sun Boy defeats Doctor Regulus. The original LSH Clubhouse, donated by the disbanded Legion of Substitute Heroes, is made a superhero museum. [Legion of Super-Heroes v3 #14-15]
The LSH investigates the recent shooting of Laurel Kent with a kryptonite bullet and learn that the murder attempt is part of a larger pattern of murders of the descendants of the Justice League of America by Prof. Anthony Ivo. [LEGION ANNUAL v2. #1]
Mon-El and Wildfire are among the group of powerful superheroes of five Earths who battle the Anti-Monitor on the moon of Qward on July 30, 1985, the day that Supergirl dies saving the five Earths. Brainiac 5 and other Legionnaires attend Supergirl's funeral in Chicago. [CRISIS #7]
July 30: On the thousandth anniversary of Supergirl's death, Brainiac 5 mourns Supergirl. Meanwhile, during Graym Ranzz's baby dedication, the newest Legionnaires solve their first case. [Legion of Super-Heroes v3 #16]
The LSH prevents the assassination of R.J. Brande by agents of his rival, Leland McCauley. Brande decides to travel the universe. [Legion of Super-Heroes v3 #17]
Rond Vidar and Brainiac 5 are alarmed to discover that the effects of the Crisis have been causing destruction throughout the galaxy, but no one remembers it. Kid Psycho's last remains are sent to Shanghalla, the cemetery world, but the Legionnaires can't remember how he died. As antimatter destroys Takron-Galtos, the Legionnaires who arrive to help with the evacuation cannot remember where the antimatter comes from or who causes it. While most of its criminal population is evacuated to be held elsewhere, members of the Legion of Super-Villains and the Fatal Five are taken to Brainiac's ship to help conquer Earths 4, X, and S in 1985. Brainiac 5 inadvertently releases the Infinite Man, who has absorbed the energies of the Crisis in the 30th century. The Legion battles him, and the White Witch causes him to return all his power to the source of the Crisis, changing him back into the human Prof. Jaxon Rugarth. With the end of the Infinite Man, the people of the 30th century remember the Crisis again. Note: This story reveals that the whole universe of the 30th century has been struck by disastrous effects of the Crisis on Infinite Earths for the past few weeks, yet almost no one remembers it. [Legion of Super-Heroes v3 #18; “The Monitor Tapes,” Crisis on Infinite Earths #10]
The LSH note that the merging of the Earths has stopped after Supergirl's sacrifice, and Brainiac 5 vows to find a way to repair the damage caused by their overlapping. Members of the Legion of Super-Villains and the Fatal Five participate in the Villain War on Earths 4, X, and S in 1985. The Spectre puts a stop to the Villain War, explaining to heroes and villains throughout time (including the LSH in the 30th century) that the Anti-Monitor still lives and has fled to the dawn of time. The LSH are among the heroes who travel to the dawn of time to battle the Anti-Monitor, while the Legion of Super-Villains and the Fatal Five are among the villains who try to stop Krona on Oa of 10 billion years ago from creating the multiverse and the antimatter universe. After a battle with the Anti-Monitor at the dawn of time, the LSH and the villains are returned to the 30th century. [CRISIS #8-10; “Crisis on Infinite Earths: The Villain War”]
September: At the end of time, the real Time Trapper takes a break from his chess game with Brainiac of 1985 to destroy Time Trapper II (the Controller posing as the Time Trapper since shortly before the wedding of Lightning Lad and Saturn Girl), who was taken from Takron-Galtos as it was destroyed. During a moopsball tournament as Rokk Krinn (Cosmic Boy), Garth Ranzz (Lightning Lad), and Imra Ardeen (Saturn Girl) are reunited, agents of the Time Trapper kidnap Garth and Imra's son Graym, but the Legionnaires are unable to summon the help of the LSH. The three Legionnaires obtain Rond Vidar's help at the Time Institute to travel to meet the Time Trapper using Vidar's Time Cube, while Lightning Lass (Ayla Ranzz) becomes suspicious over her brother's evasiveness. Arriving at the end of time, the three Legionnaires are captured by the Time Trapper's minions, and Garth is taken away. After three days of captivity, Rokk and Imra escape and find Graym, only to learn the Trapper wanted Garth all along. The Time Trapper tries to cause Garth to slip into madness by subjecting him to visions, then tells him the visions will end once he reveals the Legion's secrets to him. The Time Trapper brings Garth back in time years ago to the moment of his parents' death, which the Trapper causes. Then the Time Trapper's hourglass runs out, and the three Legionnaires with Graym automatically return to their own time. Note: The presence of Brainiac proves that this story takes place in the Earth-1 universe and is canonical. [Legionnaires Three #1-4]
October: Five LSH members (Chameleon Boy, Element Lad, Phantom Girl, Shrinking Violet, Ultra Boy) are abducted by a Controller to disable the warlike planet of Tyrraz (Tyr's homeworld), since these Legionnaires earlier destroyed a planet in Limbo where a Sun Eater was being built by a Controller in order to destroy Tyrraz. The five Legionnaires battle Tyr and then disable Tyrraz's star-drive that allows it to move through space, while the Controller remains on Tyrraz to ensure that the planet does not again become a threat. Meanwhile, Invisible Kid II has his teleportation power removed, Brainiac 5 becomes obsessed with learning Sensor Girl's identity, and Dream Girl and White Witch celebrate Halloween with several other Legionnaires. [LEGION #19-20]
Brainiac 5 expresses his suspicion of Sensor Girl to Element Lad and is caught snooping through her room; he believes she is Supergirl, although twisted in some way. Several Legionnaires accompany the prison ark containing former prisoners of Takron-Galtos to the new prison planet, Labyrinth. Emerald Empress escapes with a few villains to form a new Fatal Five. Universo is posing as Vid-Gupta, Earth President Desai's aide. The Legionnaires help deliver the former Takron-Galtos prisoners to Labyrinth. The Legion battles a madman in a powerful suit called Restorer, who is secretly a mind-controlled agent of Universo. Rond Vidar is hospitalized. [Legion of Super-Heroes v3 #21-22]
Mon-El becomes immune to Brainiac 5's serum, causing him to experience lead poisoning once again; despite his resistance to the idea, Mon-El is put into the Phantom Zone again, in which he spent more than a thousand years. Cosmic Boy and Night Girl use a time bubble to vacation in the 20th century, while a few Legionnaires use a time bubble to bring Superboy briefly to their own time to help cure Mon-El. Note: After this story, Cosmic Boy and Night Girl delay their vacation in the 20th century for a few months. [Legion of Super-Heroes v3 #23]