Orcish Fury

Orcish Fury
Feat
Prerequisite: Race: half-orc

Your fury burns tirelessly. You gain the following benefits:
- When you hit with an attack using a source=phb, you can roll one of the weapon's damage dice an additional time and add it as extra damage of the weapon's damage type. Once you use this ability, you can't use it again until you finish a short or long rest.
- Immediately after you use your Relentless Endurance trait, you can use your reaction to make one weapon attack.

Source: Xanathar's Guide to Everything (XGE), page 75