Which games are you familiar with for breeding?
Changes from X/Y to Sun/Moon
- Automatically deposits eggs that do fit into your team into the PC.
- Checks Individual Values with the Judge feature. Saves so much time.
- May inherit either parent's ball, rather than only the mother's. Grabs the male or genderless Pokemon's ball when breeding with Ditto.
- Retains regional forms by giving the mother (or father, with a Ditto) an Everstone
- No longer levels the parent at the Daycare. (Made retaining egg moves annoying before.)
- No O-Powers. Gives you a Rotom Hatching power in Ultra Sun/Moon. Replenishes specific Rotom Powers less easily than O-Powers. Could stick eggs in Poke Pelago's Isle Avue, though. Holds 18 eggs/Pokemon when fully upgraded.
- Added Bottle Caps for maximizing IVs on existing Pokemon in Ultra Sun/Moon. Cannot pass on Hyper Trained IVs, however. Uses the value they were prior.
Recalls very few mechanic changes between Sun/Moon and Sword/Shield, as far as actual breeding. (Note: Could be mistaken. Bred very little in Sword/Shield.) Applies mainly to Pokemon after hatching.
- Allows you to acquire egg moves on a Pokemon after hatching.
- Added Bottle Caps for maximizing IVs at level 100. Edit: Forgot this was in Ultra Sun/Moon.
- Introduced an item to give Pokemon their Hidden Ability in the downloadable content.