Determined Warrior (5e Feat)
From D&D Wiki
Prerequisites: Constitution 13 or higher
You've traveled long and hard through thick and thin, your journey won't end here and that spark in your eyes proves it. For having such a resolve you gain the following benefits.
- You have advantage on death saving throws.
- After being reduced to half of your hit points you enter a state of determination. You have the effects of the haste spell along with an additional +3 to Strength or Dexterity-based attacks, saving throws, and ability checks.