Duelist's Glove

The mod adds a Duelist's Glove that equips into the gloves slot of the Curios menu. While the glove is worn and a sword is held in the main hand and another in the off hand, attacks alternate between the two hands automatically, with vanilla swing animations for each strike. Every successful dual-sword hit uses one point of durability, and the glove has 3122 durability, so the glove wears down over fights and breaks when it runs out. Once it breaks, dual-sword mode stops until a new glove is equipped. While dual-sword mode is on, both hands get a 30 percent longer attack cooldown, a deliberate cost that slows each blow.

The glove is crafted in survival and works on Fabric and NeoForge for 1.21.1, with both loaders needing the Curios API and the open-hands-lib library. Duelist's Glove is open source under the MIT License and is a client and server mod, so the server and every player need it. Fabric builds also require Fabric Language Kotlin, Trinkets and open-hands-lib, and NeoForge builds require Kotlin for Forge alongside the Curios API.