If you plan to become a competitive battler in Pokémon Sword and Shield, you are going to need to acquire the Destiny Knot sooner or later in your …
Source: Where to find Destiny Knot in Pokémon Sword and Shield

If you plan to become a competitive battler in Pokémon Sword and Shield, you are going to need to acquire the Destiny Knot sooner or later in your …
Source: Where to find Destiny Knot in Pokémon Sword and Shield