Monkey Grip feat for 5e

Prerequisite: Strength 18

Benefit: Gain the following:

• Gain +1 strength up to a maximum of 20
• You may wield a two-handed weapon one-handed and gain the benefit of the two-handed grip for qualities like versatile and general use of the weapon.  If you wield two two-handed weapons, the off-hand attack normally does not add your strength or dexterity to damage.