>the three copy heroes finally merge into the ULTIMATE HERO and they fight him in a multi-versal battle
>it ends with the three heroes joining their power and firing a laser that blows a hole through the ULTIMATE HERO's chest
>in bewilderment he starts believing that the similarly-interdimensional mission control intervened and granted them additional power that he could not have been aware of until it was too late
>he's informed that in truth his perception of a 'hero' and the source of power was flawed from the start, and that their strength comes from comradery and unity, their mutual trust and faith in one-another bolstering all their abilities as comrades in arms, and to try and replicate the full power of the idea of the hero was doomed when he couldn't understand this
>instead of strength, he should have wished for friends
>as his body begins to shatter apart and he fades from across space and time, he dies in pure disbelief, completely unable to accept that someone who had transcended dimensions, created worlds, and held the power of the 'ultimate hero' did not truly understand what it meant to be a hero

It's even better because it's foreshadowed pretty well by how he views the Prince; he believes his power is "domination" and the ability to force, manipulate, or compel others into doing anything for him, yet still expresses how envious he is to see him surrounded by people who admire or love him and hoped to replace him, because he doesn't actually understand that the reason they're all willing to fight for him is just because he's really kind and endearing and they really do just want to protect him unconditionally.

I still can't believe they killed him with a fucking friendship beam though lmfao
it's like if Idea Lukas was killed by the Care Bear Stare