Zhentarim Ruffian

Zhentarim Ruffian
Feat

You gain the following benefits.
Exploit Opening.
When you roll damage for an Opportunity Attack, you can roll the damage dice twice and use either roll against the target.
Family First.
If you have Heroic Inspiration when you roll Initiative, you can expend it to give yourself and your allies Advantage on that Initiative roll.

Source: Forgotten Realms: Heroes of Faerûn (FRHoF), page 38