Watching my players play some DnD 5e, I thought this fighting style up watching my poor two weapon fighter miss way too many times.
Double Chop
When you wield two weapons, you may forego your second attack to make one attack roll. If you do, you gain advantage on a single weapon attack. Class features, abilities, spells, and other effects such as a rogue’s sneak attack do not trigger on advantage gained in this way.
Thoughts?
Throat Punch Games 
I don’t think it should be so powerful that it prevents others’s abilities. I like the idea of forgoing a second attack (or multiattack) and getting advantage instead for two weapon fighting.
I was worried about the rogue basically going it alone with two daggers and sneak attack. However, I’d be open to debate and removing the restrictions doesn’t sound horrible.