Pokémon - Death of Lysandre

“trapped underground, immortal but unable to move”

The phrase, "Unable to die, even though he wished for it, eventually Lysandre stopped thinking," comes to mind.

If any of the Pokemon abridged series ever get to this part.

Ash: Huh… I think we just killed a man.
Alain: If anyone asks, Clemont did it.
Clemont: Yeah! Wait, what?