>>13147787A level 1 Simisage can get seed bomb from the move relearner, because, in the game data, it learns it at level 1. If you were to hack in an egg that hatched into a Simisage, it would have seed bomb.
That's what "start" means. It's also why there are lots of pokes on Bulbapedia with more than 4 "Start" moves.
