Monstrous Strength

From your time fighting monsters, you've begun to notice that you've gained experience and strength from your numerous encounters. Your skin thickens, your muscles grow, you feel as if you can take on the world. +1 to your Constitution score to a maximum of 20

When taking this feat, you gain the ability to wield two-handed weapons in one hand, leaving the other open for other actions. Perhaps even.... dual wielding

If you choose to dual wield with this feat, you may do so with disadvantage because of the incredible weight of the weapons. You're strong, but not that strong.