When I first saw the Yoyo gloves description of “Lets you wield two yoyo’s at once!” I thought it meant dual wielding different yo-yos. I now know that was inaccurate. I would like to see being able to dual wield different weapons.
Same, I was exited to use 2 different yoyos at once in my yoyo playthrough and then I was disappointed.
Forgot about the functionality you've asked. Maybe the game's mechanics would allow us to chose an extra in-use weapon if you've chosen the normal sword first. Now, how it'll work you ask? Well, extra-button is there for it. By left clicking you swing your main hand weapon and right one is for off-hand. Clicking both weapons simultaneously is to trigger double swing
how about when you use this dual wield accessory you get a massive boost to melee speed with dual wielding(but only for 'one handed' a.k.a. dual wieldable weapons)
And for the actual dual wielding when you hold click to autoswing your first hit is with the weapon you're holding and when the animation ends second attack is going to be with your second dual wieldable weapon (second one handed weapon in the inventory, top and left ones will take priority) then next attack is back to the fist weapon.
basically attack pattern is
primary weapon > secondary weapon > primary weapon > secondary weapon > primary weapon > secondary weapon
with a massive melee speed
So as a result it would look like you're attacking with both weapons really fast, this way devs doesn't have to mess with making new animations for a second hand, but I can't tell if this would look good without actually seeing this happen.
It might need a huge melee speed to look good but I don't think this will be OP because 'one handed' weapons are going to be weak ore weapons, but if it does get OP accessory could get a melee damage penalty or could just nerf the weapons until it's balanced.