>>32477618it would also fit for a volcarona style pseudo-legendary in that you can only encounter the single 'mon in the game (due to it being the result of a lab failure), but it can also be successfully bred with a breeding group appropriate 'mon
event could be that you bring the fossil to the (fairly lategame) science institute, fossil is being revived as usual, you go out, you come back in and all the scientists are panicking, the machine is going haywire and eventually explodes with not-basilosaur rushing out to fight you
then either you capture it and have yourself your own pet abomination or defeat it at which point it escapes the lab and starts roaming the world for a recapture opportunity
