Warglaive Master (5e Feat)
From D&D Wiki
Prerequisites: Str of 18 or Dex of 18 and Proficiency with Warglaives
You have trained among the night elves for many years. You have learned ways to use two Warglaives without all the negative effects.
-You gain attack of opportunity while wielding one and/or two Warglaive.
-You gain +5 movement speed while holding one and/or two Warglaives.
-If you make an attack of opportunity against a target, you can attack with both hands if you are dual wielding. The second attack has a -1 to hit.