Plate of The Hundred Hands (Patreon)

Armor (Half Plate or Plate), legendary (requires attunement)

A suit of brass armor featuring innumerable arms and hands that can animate at will. While wearing this armor you gain a +2 bonus to your AC.

Single Handed. While wearing this armor you can cast the Mage Hand cantrip at will. The spectral hand is stronger than normal and can carry a number of pounds up to 20 times your Strength modifier.

Heavy Handed. While wearing this armor, you can control up to two of the additional arms decorating its surface. These secondary arms can manipulate an object, open or close a door or container, pick up or set down a Tiny object, or wield a weapon that has the light property. If your Strength score is 18 or greater, you can also use these arms to wield melee weapons that do not have the heavy property.

Hundred Handed. Once per long rest you can have the hands across this armor unfurl and take on a monstrous form. The AC bonus of this armor is decreased to 0 and you gain the following benefits for 1 hour:

You count as one size larger when determining your carrying capacity and the weight you can push or drag.

You gain a climbing and swimming speed equal to your walking speed.

You have advantage on Strength (Athletics) checks.

You can attempt to grapple a creature as a bonus action.

You can have the hands of this armor pummel your foes into submission. As an action you can have the arms of this armor make a number of unarmed strikes equal to your proficiency bonus against creatures within 10 feet of you. You are proficient with these unarmed strikes which deal an amount of force damage equal to 1d8 + your Strength modifier.

I felt the earth rumble beneath my feet, and the skies themselves seemed to quake. With a form more monstrous and befuddling than any I had ever seen, the Hundred-Handed One strode across the land, all hundred eyes scanning the horizon as a hundred limbs blotted out the sun. As awe-inspiring as it was terrifying, I knew then I beheld the form of the great Hecatoncheires.