>>39470453>>39470453>there can be only be 4 unova musketeersThe fact that have Trainers have in the games (on-screen) logically overrides the stated lore (ancient events off-screen).
>use dimensional plot to explain why the mon is catchableYes, that's my point, there is a multiverse, and beings can travel to different dimensions through it, ergo, there will always be multiples of Legendary Pokémon, they can always cross over into other dimensions where members of their species exist.