Axe Expert Feat

You wield an axe like a force of nature, maximizing and embodying its relentless and unstoppable power. You gain the following benefits:

Prerequisite: Proficiency with axes

• Ability Score Bonus. Increase your Strength or Constitution ability score by 1, to a maximum of 20.
• Axe Rush. While wielding a handaxe, battleaxe, or greataxe, you can use a bonus action to move up to 5 feet and add 1d6 to your next attack and damage roll with an axe.

Source: KCLL, page 186