Materials

Metals

Adamantine. An ultra-hard alloy of adamant and electrum. Adamantine is black with a green tinge that sharpens to purple-white under light from most magical sources. Armour made of adamantine reduces incoming bludgeoning, piercing, and slashing damage by 3 if it’s heavy armour, or 2 if it’s medium armour. Shields made of adamantine have a +1 bonus to Armour Class. Equipment made of adamantine can’t be destroyed, damaged or suffer from wear.

Bloodmetal (Zodiakol). This metal gives off a feeling of fear and the smell of brimstone (add your proficiency bonus to critical damage).

Cold Iron. A rare pure-formed iron, mined deep underground and forged at lower temperatures to preserve its delicate properties. Weapons made of cold iron deal an additional weapon damage die against fey creatures.

Mithral. Known to the dwarves as truemetal, this shining silvery-blue metal is lighter than steel yet just as durable. Equipment made of mithral weighs only half as much as the same item made of normal metals, and has no Strength requirement. Additionally, armour made of mithral can be worn under normal clothes, and doesn’t impose disadvantage on Dexterity (Stealth) checks when it otherwise would. Small creatures do not have disadvantage on attack rolls with heavy weapons made of mithral.

Orichalcum. This metal is strangely resistant to and numbs the area around magic. Armour has a +1 bonus to Armour Class against spell attacks, and a +1 bonus to saving throws against spells and magical effects. Shields and weapons wouldn't contain enough orichalum to be effective.

Planetouched Metal. This metal has journeyed through the planes before finding itself in your hands.

• Chlorophyte (Fey-touched). This deep green metal originates from densely-packed organic materials that lie deep within the ground of the Feywild, infused with magics. At high temperatures, it can be stretched across another material. A creature struck by a weapon must succeed on a DC 10 Wisdom saving throw or become frightened until the end of its next turn. On its next turn, the frightened creature must use its movement and action to dash away from you. Armour confers advantage on saving throws against being charmed.
• Starmetal (Astral-touched). This metal is the leftover material from the impact of an object fallen from space. Extremely rare and in high-demand, it can be forged with common metals to confer a +1 enchantment bonus to nonmagical items. A pebble-sized amount is sufficient for most weapons; the amount needed for armour and shields is equal to half of the item's base weight. Starmetal can be mixed with up to one other unusual material and a base element.
• Voidmetal (Shadow-touched). This metal has been corrupted by the endless void of darkness within the Shadowfell. The first time each day a creature is struck by the weapon, it must succeed on a DC 13 Constitution saving throw, or be blinded by imagined darkness for 1 minute. At the end of each of its turns, the creature can make another Constitution saving throw. On a success, the spell ends on the target. Wearing armour removes any disadvantage ordinarily caused by wearing it.

Sunmetal (Liannar). This metal glows with a soft, internal light. Armour, shields and weapons shed dim light in a 5ft. radius.

Nonmetals

Black ice (Chardalyn). Black ice is a mineral found in only a few areas of the Frozenfar in northwest Faerûn. Magical in nature, it is permeated with the evil quintessence of the monolith known as the Cryshal-Tirith. When heated to a medium heat, it can be shaped into jewellery, armour and weapons. A creature struck by a weapon takes an extra 1d4 psychic damage. Armour confers psychic resistance (5). Equipping a shield confers a +2 bonus to saving throws against effects that deal psychic damage.

Darkwood (Zalantar). This rare magical wood has similar properties to beech, oak and yew for bow-making while being extremely light and durable. Longbows and heavy crossbows don’t have the heavy property.

Deepcrystal (Arcanite). Deep crystal is a mineral of above-average quality found at the heart of large veins or deposits, and is renowned for its strength and magically resonant nature. Weapons and shields can be used as a spellcasting focus.

Dragon scales. Dragon scales delicately-pared can be fashioned into armour or applied to a shield. While wearing such armour, you have resistance (15) to the damage type associated with the dragon from which it is made (for example, blue dragonhide armour confers resistance to lightning damage). Equipping a shield confers a +2 bonus to saving throws against the appropriate dragon breath. Due to the high error margin, the amount of dragon scales required is equal to twice the armour or shield's base weight.

Ironwood. Ironwood is a magical substance created from normal wood by druids. While remaining natural wood in almost every way, ironwood is as strong, heavy, and resistant to fire as steel. Spells and effects that affect metal do not affect ironwood, whereas spells that affect wood do – although ironwood will not burn.

Nullstone. A dark grey and extremely heavy element, found occasionally in areas badly affected by the Spellplague. Nullstone filings can be mixed in other elements in the forging process. A creature struck by a weapon has a -2 penalty on the Concentration check triggered. Armour can absorb magic, conferring Spell Resistance (14). Due to the quantities needed for armour, the wearer's Speed reduces by 10 feet, unless the wearer's Strength is 18 or higher. Nullstone shields are too heavy to use effectively.

Shadowsilk. Highly prized by assassins and cutpurses, shadowsilk is cloth made from magically woven shadow-stuff. While wearing normal clothing or a gambeson or leather jerkin made of shadowsilk and no other armour, you have advantage on Dexterity (Stealth) checks when attempting to hide in dim light or darkness.

Notes

Unless stated otherwise, combining materials doesn't usually provide the desired outcome. Typically, the ratio of material to metal or other element is so finely-balanced that there's only enough 'room' in the equation to turn the raw material into the desired item.

Enchanted items

Enchanted items can't be further refined with unusual materials, however, mundane items can undergo such a reforge first, before being enchanted. Each prior unusual material present increases the cost of enchantment by a cumulative factor of 1.5×.

Material	Armour	Shield	Weapon
Adamantine	20×	1500gp	10×
Black ice	2×	800gp	2000gp
Bloodmetal	–	–	1000gp
Cold iron	–	–	2×
Darkwood	–	–	10×
Deepcrystal	–	1600gp	400gp
Dragon scales	20×	1000gp	–
Ironwood	3×	750gp	750gp
Mithral	10×	–	3×
Nullstone	15×	–	1200gp
Orichalcum	5×	–	–
Planetouched – Fey	5×	–	2500gp
Planetouched – Astral	2500gp	2500gp	1500gp
Planetouched – Shadow	10×	–	2000gp
Shadowsilk	1000gp	–	–
Sunmetal	2×	300gp	300gp