On behalf of the Light, Black Manta staged an attack on the Science Center to retrieve the creature. The plan was thwarted by Aqualad and Garth, and Black Manta blew up the creature out of spite. A small piece survived the blast and began regenerating. Prince Orm decided that it would be best that the piece be taken to the surface world for further studies, considering the fact the Science Center had been greatly damaged and could not safeguard the piece. It was eventually examined in Gotham City's STAR Labs.
While Klarion and his band of sorcerors had split the world into two dimensions, one for adults and one for children, Lawrence Crock led a mob of angry and confused parents to the STAR Labs facility in Gotham, demanding answers. This distraction gave Riddler a chance to sneak into the facility and steal the echinoderm sample.
Riddler and Sportsmaster later presented the tentacle to the Brain and the rest of the Light. The tentacle had regenerated slightly since being blown up.
While under the influence of the Starro-tech, Atom was dissecting a piece of Starro, when suddenly, it began to levitate. This provided enough distraction for Miss Martian to tag him with cure-tech.
When the armadas were crippled and Vandal noticed one of the aliens is under the influence of Starro. He had Cassandra take control of the Warworld. She remembered Vandal's days as Marduk, fending off a Starro invasion in Babylon. Vandal's son Nabu fell to the scourge, while Vandal and his daughter Ishtar continued to battle the alien.
Vandal used a Boom Tube to board the ship, where he encountered Starro and killed it, while Cassandra used the Warworld to defeat the armadas. Cassandra remembered Vandal's battle in Babylon against Starro and how he and his daughter prevailed then, too, and became known as the Light.