Parent 1
Which IVs are 31?
Held item
Parent 2
Which IVs are 31?
Held item
Inheritance probabilities
How Pokémon breeding inheritance works
Each egg picks 3 random IVs from the 12 between its two parents (no Destiny Knot), 5 random IVs (with Destiny Knot), or 5 random IVs plus 1 guaranteed by a Power item. The "12 IVs" pool is each parent's 6 IVs — so if both parents have 31 in Attack, both copies of Attack go into the pool, and there's no guarantee the egg gets 31 (it could pick the "wrong" parent's 31).
The Destiny Knot + Power item meta
Best strategy for 5×31 / 6×31 breeding: give one parent Destiny Knot (passes 5 random IVs) and the other parent the matching Power item for the stat where both parents have 31. That stat is now guaranteed; the other 4 of 5 Destiny Knot picks come from the remaining 10 IVs. With both parents holding 4×31 in different stats + matching Power items, the math approaches 5×31 every 10 eggs on average.
Hidden Ability inheritance
If the female parent (or non-Ditto parent) has a Hidden Ability, the offspring has a 60% chance of also being Hidden Ability. With Ditto + HA male, same 60% rate. Without an HA parent, no eggs will have Hidden Ability — period.
Egg moves in Gen 9
Mirror Herb (SV-only mechanic) changes everything. Put Mirror Herb on a Pokémon and bring it to a picnic with another Pokémon that knows an egg move — the Mirror Herb holder learns that move directly, no breeding required. Egg move chains are now extinct as a grind. Hidden Power's been replaced by Tera Blast in competitive play too.
Common breeding goals
- 5×31, 0 Speed: Trick Room build. Both parents need Spe = 0 IV; use HP Power on one and Destiny Knot on the other.
- 5×31, 0 Attack: Special attacker. Both parents need Atk = 0 IV; Atk Power on one and Destiny Knot on the other. Standard for Modest / Timid special sweepers — lowers Foul Play and confusion damage.
- 6×31 + matching nature: Everstone on the nature-correct parent + Destiny Knot on the other. Expect ~150-200 eggs to get one perfect.
The picnic egg system
Scarlet/Violet replaced the day-care with picnics. Set up a picnic with two compatible Pokémon (same egg group, opposite genders or with Ditto), wait 10-30 real minutes, and check the basket for eggs. With Egg Power 3 sandwiches, you can pull a dozen eggs per picnic — much faster than the old day-care system.