>>43884565It's the other way around, Eternatus is the result of the weapon
While Rayquaza was the first Mon to mega evolve Lucario was the first to mega evolve with humans for warfare, which explains it's ruthlessness. Mega Lucario was used to counter Galar's Melmetal creating their vast supply of metal and after the ultimate weapon was fired Eternatus appeared and starting causing havock just by existing similar to the elephants foot in Chernobyl. Zacian and Zamazenta defeat Eternatus and the rest is history..
