Editing Zamasu (Super Dragon Ball Heroes) (section)

=== Super Dragon Ball Heroes ===

==== Prison Planet Saga ====
Fused Zamasu, thought to have been erased, is brought back by Fu, likely through timeline manipulation. Captured and sent to the Prison Planet, he is imprisoned within the Core Area, where he joins the Core Area Warriors to continue his "Project Zero Mortals" and destroy Zeno. Fused Zamasu surprises Goku by appearing alongside the other Core Area Warriors and uses telekinesis to retrieve [[Cumber]] before they all teleport away.

==== Universal Conflict Saga ====
In the anime, Fused Zamasu appears with Hearts, observing the battles of [[Oren]] and [[Kamin]] against [[Vegeta (Super Dragon Ball Heroes)|Vegeta]] and [[Future Trunks (Super Dragon Ball Heroes)|Future Trunks]]. Hearts instructs Zamasu to refrain from intervening until Zeno is defeated, and Zamasu agrees, though he warns Hearts not to order him around.

Zamasu follows Hearts and the other Core Area Warriors to Universe 11, where he confronts [[Jiren (Super Dragon Ball Heroes)|Jiren]] after Cumber and Super Oren fail to inflict any damage. The two initially dodge each other's attacks until Jiren scrapes Zamasu's hair, angering him. Their battle is interrupted by Goku's arrival with the [[Grand Priest|Grand Minister]], and Zamasu is shocked to see [[Goku (Dragon Ball Heroes)|Goku]] using Ultra Instinct effortlessly. He is overpowered by Jiren, who knocks him into a rock wall and blasts him repeatedly, but Zamasu regenerates, boasting about his invincibility. Jiren questions the extent of his immortality, and Zamasu recognizes the Supreme Kai when Shin appears to teleport the Saiyans away.

Later, Fused Zamasu and the Core Area Warriors head to Universe 7, where they confront the Dragon Team. Zamasu battles Super Saiyan Future Trunks and Vegeta. Trunks questions his decision to team up with a mortal, but Zamasu refuses to answer. He watches as Goku battles and defeats [[Kamioren]]. After Hearts merges with the completed Universe Seed, Zamasu defends Hearts from the Dragon Team, defeating all except Goku, whom he overpowers and traps in a painful body lock.

When [[Hit (Dragon Ball)|Hit]] and Jiren arrive unexpectedly, Jiren knocks Zamasu off Goku. Zamasu prepares to battle the Dragon Team and their allies, but Ultimate Hearts paralyzes him with telekinesis and encases him in an energy cube, reminding Zamasu that his goal was to destroy all gods. Hearts then shrinks the cube down into nothingness, disintegrating Zamasu completely, making him his first victim.

In the manga, after Kamioren's defeat by Jiren, Fused Zamasu attempts to seize the power of the completed Universe Seed but is betrayed by Lagss, who turns him into glass. Future Trunks then slices him in half, leaving his fragmented glass body conscious but immobile in the Core Area.