Fighting with both of these weapons is graceful and seamlessly easy, like a fighting dance of blades.
Attuning to both of these weapons count as only one attunement. While having both of these in hand, you gain a swim speed equal to your walking speed.
When you take an attack action with both weapons in hand using dexterity, you can make two attacks instead of one as a bonus action. You don't add your damage modifier to this attack if you don't have the proper fighting style.
Proficiency with a scimitar allows you to add your proficiency bonus to the attack roll for any attack you make with it.