Wishes are too specific of an answer, while Imagination is too general, IMO.
The idea behind various Legendary Pokémon, especially the ‘third’ in a ‘set’, all seem to actually be connected in some way. In this way, “Dokutaro” can actually be compared to Koraidon and Miraidon, especially if it’s eventually revealed that this “Peach of Immortality” Pokémon, is actually the Third in the Paradox Trio: If it’s a Paradox of Glimmora, the first Paradox Pokémon created by Terapagos, then it’s likely a majority of Terapagos’ original power went into making this ‘Fruit’, immortal. Why do I say it completes the Trio of Paradox legends? Simple, Dokutaro empowers Pokémon through the Toxic Chains, much like Koriadon and Miraidon empower regular Paradox Pokémon with their natural Sun raising ‘Orichalcum Pulse’ and set Electric Terrain with ‘Hadron Engine’. It’s a much simpler, and literally costly, empowerment, but it is obvious to me that Dokutaro is a Paradox Pokemon that blows up the ‘past/future’ argument out of the water.