Martial Archetype: Many-Armed

As a warrior, you take the phrase "heavily armed" very literally. You have a total of four arms, and you have learned martial techniques to make the most of this edge in battle. Your arms could be a natural feature of your race, a prosthetic augmentation, or the byproduct of some odd transmutation magic. Whatever the case, you use every one of your limbs with deadly efficiency.

Four Arms Starting at 3rd level, you have two additional arms for a total of four, and you know how to use them in combat. These arms are capable of everything that an ordinary arm can do. If your race already gives you four arms, any limitations on your extra arms, such as not being able to hold certain types of weapons or use shields, are removed. In addition, you gain the following benefits. You can use two-weapon fighting even when the weapon or weapons you attack with during your Action aren't light or one-handed. The weapon used for the bonus attack must still have the light property.

If you use at least three free hands to grapple a creature, you have advantage on Strength checks to grapple them and keep them grappled.

When you draw or sheathe a weapon, you can draw or sheathe an additional weapon as part of the same object interaction.

Armor Alterations At 3rd level, you have learned how to alter your armor and clothing to accommodate your extra limbs. You gain proficiency in leatherworker's tools, smith's tools, and weaver's tools. By spending a day of downtime, you can alter one set of armor or clothing to fit either your body shape or the body shape of someone else you know. This includes tailoring it to their size, up to one creature size larger or smaller than the original garment, and adding accommodations for extra appendages, such as arms, wings, and tails. Altering a magical set of armor or clothing in this way takes 3 days of downtime.

Multitasker Starting at 7th level, you can interact with two objects, instead of one, when you take the Use an Object action on your turn. The number of objects you can use increases to three when you reach 11th level in this class and to four when you reach 20th level in this class.