>>55538336>>55538352They probably don't want to do it because it would "erase" the other mon. Though they could do something like have a Slowbro get bitten by a wild Shellder, or have a Magnemite beat two wild Magnemite to join together so that way it's not like the player is losing one of their mons. Also raises the question of what happens if a shiny is involved in this, does it just get overwritten or does Slowbro have a shiny tail?