a small breeding change, if i have 2 adamant pokes the offspring will always be adamant without the need for an everstone. this balances out because sometimes u will want a random nature so the guaranteed adamant will be a hindrance or it will help meaning u can brace two stats and nature. It is also not too overpowered as it is difficult to find two breeders of the same nature, especially with shinies or ungendered and dittos