Unlike many of the more storied monasteries, there are a select few that seek out the mastery of the Iron Grasp, the rigid pursuit of control of one's self and others by aligning one's ki with the properties of cold unyielding metals. Masters of the Iron Grip learn to impose order upon others through the attunement and subtle manipulation of the metals around them.
Alloy Sight
Starting when you take on the way of the Iron Grasp at 3rd level, you become magically tied with crude and refined metals and can feel their presence around you. Along with your other vision abilities, you gain the ability to sense metal as a second sight. You gain this vision to a distance of 10 x half your level (rounding down). Alloy Sight penetrates beyond walls and other nonmagical obstacles.
Iron Gauntlets
Also starting at 3rd level, you master a form of hand-to-hand combat using iron gauntlets as fluidly as you use your own bare hands.
You become proficient with Smith's Tools if you aren't already. You can spend a short rest and 50 gold worth of materials to craft your gauntlets or can purchase any pair of metal gauntlets. Gauntlets do not impede Unarmored Defense or Unarmored Movement as long as they do not extend beyond half your forearms in length. Your gauntlets count as a monk weapon. Unarmed strikes can be made while wearing your gauntlets. When making an unarmed strike with the gauntlets you can spend ki points to add to your attack rolls. For each Ki point spent, your attack roll increases by 1. You can add Ki points to your roll before or after the DM says if your attack was successful.
Iron Grip
Also starting at 3rd level, when attacking a medium or smaller creature from a flanking position, you can attempt to grapple the creature as a bonus action. Both you and the creature must make competing athletics checks.
Additionally, you can spend 1 ki point to doth your gauntlets around a grappled or otherwise restrained creature as a bonus action. The gauntlets bind around the creature arms or legs (max 2 limbs) and lock into place taking on the properties of manacles. While within 5 feet of the manacled creature, you can use a free action to unbind the creature and don your gauntlets.
Contort metal
Starting at 6th level, you can use your reaction to deflect or catch attacks in a gauntlet when you are hit by a melee weapon attack. When you do so, the damage you take from the attack is reduced by 1d10 + your Strength modifier + your monk level. If the weapon is made of metal, you're able to bend or crumple the weapon rendering into a useless shape. You can spend 3 ki points if the weapon is one-handed and 4 ki points if the weapon is two-handed or versatile to contort the shape of the weapon. If the weapon is magical, you must spend an additional 2 ki points. Attacks made with this damaged weapon have disadvantage until repaired.
Rend Iron
Starting at 6th level you can spend 1 ki point to double a strength check to bend, crush, or otherwise forcefully manipulate a metal object with your bare hands.
Magnesis
Starting at 11th level, you can pull on metal objects under 20 lb. within the reach of your Alloy Sight. As an action, you can spend 2 ki points per metal object within range to move it 5 feet toward you. If the object is obstructed it travels as far as it can before impacting the obstruction.
If an object is held by a creature, that creature can use their reaction to make a Dexterity Saving Throw (DC = 8 + Dexterity modifier + your proficiency). On a failed save the creature loses their grasp of that object as it travels towards you.
Oppressive Strikes
Beginning at 17th level you are able to study your opponents as you battle them. At the start of your turn, you can spend 5 Ki points to embolden all strikes made with your gauntlets. Each unarmed strike made on this turn gains your proficiency bonus in additional bludgeoning damage.
