This guide is designed to help you get started on the path to breeding those 5 IV, and perfect 6 IV Pokémon for use in competitive battling, and trading on Pokémon Sword Version and Pokémon Shield Version.
Prepare for Trouble (Preparation)
The key to successful Pokémon breeding is preparation. Over the generations several mechanics have been added to make the process of breeding for Pokémon with competitive IVs easier. By taking advantage of these mechanics we reduce the amount of eggs and time it takes to hatch competitive Pokémon significantly
Gather the hold items that Pokémon will use while breeding.
The two hold items that will be critical for breeding competitive Pokémon are the Everstone and the Destiny Knot.
The Everstone is a item that when held by a Pokémon that can evolve prevents it from doing so. This item also has a hidden breeding effect: When held by one of the Parent Pokémon the nature of that parent will be passed down to the baby. For example if you have a parent with a Timid nature and you have that parent hold an Everstone while breeding, the hatched Pokémon will have a Timid nature too.
The Everstone can be found in a few ways; The quickest way would be to visit the Digging Bros, who can be found just south of the Pokémon Nursery in Bridge Field in the Wild Area. For 500 Watts you can have one of the brothers dig up items for you, and one of the more common items is the Everstone.
Everstones can also be found on wild Roggenrola, Boldore, and Gigalith 50% of the time (click here for a list of locations where you can encounter them). If you wish to speed up this process you can take a Butterfree with the ability Compound Eyes and teach it the move Thief (TM23), Compound Eyes will raise the chances of wild Roggenrola/Boldore/Gigalith having an Everstone to 60% and by using Thief in battle Butterfree can steal the item, then you can run from the battle and take the item from Butterfree.
The Destiny Knot is hold item that activates when the Pokémon holding it becomes infatuated with the Pokémon, it makes the enemy Pokémon infatuated with the Pokémon holding the Destiny Knot. The Hidden breeding mechanic is that if a parent holds the Destiny Knot while breeding a total of 5 IVs randomly selected from among both parents will be passed down to the baby. For example it might pass down the HP, Attack IVs from the mother and the Sp. Defense, Defense, and Speed IVs from the father.
The Destiny Knot can be found at the BP (Battle Point) Shop inside the Pokémon Center in Hammerlock City, it costs ten Battle Points, which can be earned by winning battles in the Battle Tower which opens up after you become Champion of the Galar League. They are also sometimes distributed through Mystery Gift function so, be on the lookout for distribution codes.
Abilities and Pokémon that make breeding easier.
Synchronize is a very useful ability with an equally useful hidden mechanic. In battle Synchronize will mirror any status effects that the enemy Pokémon inflicts on your Pokémon. So if you Pokémon with Synchonize is paralyzed by an attack from the opponent the ability activates and the opposing Pokémon also becomes paralyzed. Outside of battle if you put a Pokémon with Synchonize in the lead spot in your party it makes it so that wild Pokémon you encounter will have the same nature as the Synchonize Pokémon. So if you put a Synchonize Gardevoir with bold nature at the front of your party then all of the wild Pokémon you find will also have a bold nature. *Note: Synchronize won’t work on raid battles or Pokémon that are received as gifts.
Ditto is the unofficial mascot of the Pokémon breeder. Because of Ditto’s ability to breed with most Pokémon it is a great time saver. Finding a Ditto with multiple perfect IVs will make breeding for perfect IVs much easier. Ditto can be found in the grass around Lake of Outrage, and in Max Raid Battles. The Ditto from Max Raid Battles tend to have multiple perfect IVs more often, so it’s a good idea to focus on that method for catching.
Magma Armor, Flame Body, or Steam Engine is another handy tool for trainers. In battle the Magma Armor ability prevents the Pokémon from being Frozen, and the Flame body ability makes it so that whenever the enemy Pokémon uses an attack that makes direct contact (Like a Kick, Punch, or Tackle for example) the opponent has a 30% change of getting burned from that contact. The Steam Engine ability activates when the Pokémon is hit by a Fire or Water-type attack and raises the Pokémon’s speed stat by six states (the maximum boost possible in battle). The hidden mechanic for these abilities is that if a Pokémon with one of these abilities is in your party it halves the amount of steps you have to take to hatch eggs. With this you can hatch your eggs much faster.
Lastly you will want to have access to the IV Judge feature on your Pokémon Storage PC. This feature will let your check the IVs of your Pokémon when you are looking through the boxes. This feature is unlocked by reaching Rank 4 in the Battle Tower and defeating Leon.
Tools for shiny breeding (Optional if you are just looking for competitive stats)
Shiny Charm is a key item that increases your odds of encountering or hatching shiny Pokémon from 1/4096 to around 1/1365. You obtain the Shiny Charm by completing your Galar Region Pokédex. The Shiny charm stacks with the Masuda Method.
The Masuda Method is a hidden mechanic that increases the odds of hatching shiny Pokémon when breeding. To do this trick you need to have two parents from different real-world regions breed. For Example, Breeding a Charmander from an English-language game with another Charmander traded over from a Korean-version of the game will increase the odds of the baby being shiny to roughly 1/683, and when combined with the Shiny Charm boost the odds become 1/512.
Items to skip over breeding for IVs and Natures all together
There are a few items that can be used to forgo the process of breeding for natures and IVs entirely. Using these items you can take any random Pokémon of the species you want and boost it so that it has the nature effects and the perfect IVs that it needs to be competitive. Those items are Bottle Caps and Mints.
Bottle Caps come in two varieties; Regular (Silver) Bottle Caps, and Gold Bottle Caps. To use these caps the Pokémon must be at level 100. Then you go to the Battle Tower and the desk on the right side will offer to Hyper-train one of your level 100 Pokémon. Regular Bottle Caps allow you to select one stat and increase its IVs to a perfect 31. Gold Bottle Caps let you make all of the stats perfect.
Bottle Caps can be purchased in the BP Shop in Wyndon for 25BP, they can also be prizes for winning Max Raid Battles after becoming the Champion, The Digging Bros. have a small chance of digging up Bottle Caps as well. Gold Bottle Caps are more rare and are mostly gotten from mystery gift distributions and very rare rewards from the Digging Bros.
Mints allow you to change the nature buffs and debuffs on your Pokémon to a different kind depending on the type of mint. For example if you have a Pokemon with a Lax Nature (+Defense and -Special Defense) and you give that Pokémon a Timid Mint the stat layout will change to be that of a Timid Pokémon (+Speed and -Attack) the nature will still read as “Lax” but the stats of the Pokémon will be of a Timid nature.
Mints can be purchased at the BP Shop in the Battle Tower for 50BP. They can also be earned by ranking up in the Battle Tower. If you have access to the Expansion Pass mints can be found randomly on the ground around the Isle of Armor.
To get started with breeding once you have your Pokémon and items lined up fly to the Pokémon Nursery on route 5 or on Bridge Field in the Wild Area. Make sure that one of the parent Pokémon has the desired nature you are breeding for, and give that Pokémon the Everstone, have the other parent hold the Destiny Knot. If you are breeding for egg moves make sure that one of the parents knows the desired egg move. Once both parents are in the daycare you can hop on your bike and ride around until the attendant standing out front changes her position, when she does this it means an egg is ready to pick up, talk to her and get the egg and then continue to ride your bicycle to hatch the egg (make sure a Pokémon with Flame Body or Steam Engine is in your party for faster hatching).
Continue this process until you hatch a Pokémon with desired stats. If you hatch a Pokémon with better stats than one of the parent Pokémon currently in the daycare, you can take that parent out of the daycare and replace it with the hatched Pokémon this rotation increases the odds of the next Pokémon hatched having more perfect stats. If you are using the Masuda Method, must always keep the foreign parent in the daycare so you would do best to find one with multiple perfect IVs to begin with.
Using this process will speed up your breeding greatly, and help you get the most out of your time, so you can your perfect Pokémon fast and get to battling!