More Mystical Metals

Aside from mithral and adamantine, other fantasy metals can be used to create items. These metals display several unique properties when forged into weaponry, armor, or items.

Infernioch

A blood red metal with infernal glyphs fading and appearing on it. This fiendish metal is forged in the depths of the 9 hells. The metal gains its hue by absorbing blood and being imbued with a devil's curses.

Weapons and ammunition made of Infernioch deal double double damage to celestials. During a round, if any attacks hit with this material, it inflicts a curse on the target. The curse imposes disadvantage on the target's next attack roll, saving throw, or skill check.

Armor and shields made of Infernioch make the user immune to spells and abilities that curse the target.

Mirror Steel

A special alloy that is highly reflective, this metal always maintains it's high polish.

When made into armor or shields, the reflective nature gives you disadvantage on stealth checks if you are in bright or dim light. While in bright light, any creature within 10 ft of you has disadvantage to hit you.

Weapons made of this reflective metal can be used to reflect bright light, blinding creatures. As a bonus action, you reflect bright light into the eyes of a creature. The creature is blinded until the start of your next turn. This does not work if the creature does not rely on sight.

Morphem

This metal retains memory of shapes it has been forged into. The purer the metal the more shapes you can retain in an amount of metal. When you forge the metal into a shape and quench it, the metal remembers the shape. Then, the metal is reforged and requenched. This process repeats until the metal reaches its limit, at which point the metal "locks" and cannot be reforged. As an action, you can morph an item made of this metal into one of its other forms. Morphem can only shift into forms of equivalent weight.

If you use the identify spell or spend an hour with the item, you are aware of the forms it can change into.

Necrostele

A dark, gray metal with off white striations that give it the appearance of charred bone or ivory. Necrostele is formed by a blacksmith skilled in necromancy compressing negative energy into solid form.

Weapons and ammunition made of this necrotic material permanently sucks the life force from its victims. When you hit a creature, their max hp permanently drops by the attack's damage.

Armor and shields prevent the draining of life force from their user. The user cannot have its max hp lowered. The user is immune to spells and abilities that drain life force.

Null Metal

This seemingly ordinary metal has no weight whatsoever. The ore is found in veins of floating mountains and sky islands. Raw ore of the metal floats up into the air if not secured. As one works the metal it loses its upward acceleration and becomes merely weightless, neither falling nor floating.

Armor made from this metal no longer has a strength requirement. Melee weapons made from this metal can become versatile, though two handed weapons will lose power when wielded with one hand. Weapons with the thrown property or ammunition made completely of the metal continue on their trajectory until they hit an object.

When one lifts an item made of null metal into the air and lets it go, the item maintains its position in the air until an external force moves it.

Orichalcum

Orichalcum is dark, orange-hued metal. Once it is heated, orichalcum must be forged into its intended shape before it is cooled, as it can no longer be heated after being quenched. Items forged of this metal no longer conduct heat, making them cool to the touch even after being submerged in lava or sitting for any length of time in a fire. Even heat metal has no affect on the metal.

Reverbilt

This metal seems to blur into several versions of itself. As the metal is worked, an "echo" is produced when you strike it, resulting in several afterimages of the metal appearing. The longer you work the metal the more echoes are present. However, as you gain more echoes the probability of the metal fading out of existence increases.

Weapons and ammunition of this metal have a higher attack bonus based on how many afterimages are present. Creatures that don't rely on sight are immune to this effect. You can use a bonus action to collapse afterimages of a weapon into an attack echo for the rest of your turn. When you take the attack action using that weapon, you can take the attack action again. After using this ability, you cannot do so again for 24 hours.

Armor and shields have a bonus to AC due to similar reasons. Creatures that don't rely on sight are immune to this effect. As a bonus, you collapse the afterimages into a defense echo until the start of your next turn. When you are hit by an attack, you can instead make it miss and hit your defense echo. After using this ability, you can no longer do so again for 24 hours.

Shattergleam

This silvery metal has deep cracks all throughout. As the metal is forged it absorbs and builds up force energy. During the quenching process, the force energy becomes too much for the hardened metal, causing cracks to form on the metal. The resulting metal is extremely fragile, shattering on significant impact. However, when it does, the energy stored inside cause the shards to explode outward. This limited durability means that only ammunition and projectiles are made of the material.

When a ranged attack made with a Shattergleam projectile hits the target, the target takes the projectiles normal damage. Regardless of whether you hit or miss, the target and any creature within 15 ft of the target must make a DC 15 DEX saving throw. On a failure, they take 1d12 force damage and 1d12 piercing damage. On a success, the target takes half as much damage and all other creatures take no damage.

Void Metal

A pure, black metal that seems to absorb light, this material is an energy sponge that absorbs elemental energy and gains properties based on what it is exposed to, changing its color and pattern to a more vibrant display. Once exposed to an initial element, it can continue to absorb that element and release it.

Void metal is inert until it is exposed to an element for its unique forging process. Continued exposure is how one "heats" the metal to be soft and workable. The color intensifies as the forging goes on until the metal is "quenched" in earth. Void metal has several processed variants, as listed below.

Weapons and ammunition of fully imbued void metal deal an additional 1d6 damage of their corresponding element.

Creatures with armor and shields made of the fully imbued void metal reduce damage by 10 when they take that type of damage. As an action, a creature can strike the shield or armor and any creature within five feet must make a DC 15 Dex saving throw. On a failure, they take 2d6 of the corresponding damage.

Forging guide

In order to forge items, one must have proficiency in smith's tools. During the forging process, you add your proficiency bonus to any checks and saves made.

You must first obtain the material and in quantities needed for the equipment you intend to create. The following tables will help you determine the amount and cost. Use the Raw Material Cost table to find the per ingot cost of the material and multiply it by the amount found in the Material Requirements table.

Celeseite Forging

Creatures classified as fiends and undead, as well as tieflings, take 4d10 radiant damage when they try to work this metal. On a failed forging check, you also take 2d8 radiant damage.

By apprenticing under a celestial smith, you can learn how to bless the metal yourself. The apprenticeship lasts 2d4+2 months. Afterwards, due to your celestial connections, you gain 4 ingots of the base material every month and you lower the DC of Forging checks for items made of celeseite by 5. You also do not take damage on failed Forging checks.

Fulbright Forging

While forging, you must shine daylight on the metal to infuse it with radiant energy. The metal must be exposed to daylight 2 hours per ingot used (min 2 hours) to let the metal be infused with radiant energy. The metal loses radiance when worked out of daylight.

Gravitonne Forging

Instead of a Dexterity modifier you must use your Strength modifier for the Forging check to work the stubborn material. In addition, you need a minimum strength score of 13 to be able to properly control the metal. On a failed Forging check, in addition to the increased time, the gravitational properties of the metal cause the metal to drastically increase in weight, unable to be lifted or moved for 24 hours.

Infernioch Forging

Creatures classified as celestials or aasimar take 4d10 fire damage when they attempt to work this metal. Every time you make a Forging check, you must make a DC 15 Wisdom saving throw. On a failure, you gain disadvantage on your next forging check.

By apprenticing under a devil smith, you learn the curses used to infuse the metal. The apprenticeship lasts 2d4+2 months. Afterwards, due to your infernal relationship, you gain 4 ingots of the base material every month and you lower the DC of forging checks for items made of Infernioch by 5. You also do not gain disadvantage on failed forging checks.

Morphem Forging

While not requiring the material for multiple forms, Morphem forging requires taking the added time and making the additional checks required for each additional form.

Necrostele Forging

Only a smith gifted in necromancy or who is undead can forge Necrostele. Non-undead must be able to animate dead or communicate with spirits to safely work the steel. Anyone who cannot do so that works on the material takes 2d6 necrotic damage every four hours they work on the material and 4d6 necrotic damage on a failed Forging check.

Those truly gifted in the necromantic arts can create the material out of lingering spirits. You can create an ingot of Necrostele by making a DC 20 Arcana check. On a success, you condense the lingering spirits within a 10 mile radius. On a failure, you take 3d6 necrotic damage and gain 2 levels of exhaustion.

Reverbilt Forging

Forging of Reverbilt adds an extra level of difficulty to the forging process, as the creation of echoes requires extra time and skill. Each successive echo increases the time needed and difficulty of Forging checks. On a failed forge check, part of the material scatters out of existence, wasting an ingot's worth of material of the item you are currently working on. This material needs to be replaced in order to complete the item.

Void Metal Forging

By exposing the metal to elemental damage, you begin the "heating" process. The metal must absorb 20 points of damage to begin glowing and must be kept malleable by adding 10 points of same type of damage every thirty minutes. If the metal is expose to a different type of damage than the initial one, the material begins to break down, destroying an ingot's worth of material after taking 20 points of incompatible damage.

This damage can be applied via natural sources (listed below), spells or supernatural abilities. When you fail a Forging check for the metal, you also take 1d4 of the stored elemental damage. Constantly using cantrips to work the metal requires you to succeed on a DC 10 constitution saving throw after casting for four hours or gain a level of exhaustion.

Gilding

You must get 50 gp worth of unminted gold. By making a Forging check with a DC of 13, you coat a weapon or 10 pieces of ammunition in a solid layer of gold. On a success, the weapon or ammunition is properly coated, without ill effects. On a failure, the gold layer becomes cracked and must be done again, causing you to lose 15 gp worth of gold trying to separate the gold from the item. This gold must be replaced to properly complete the job.

Equipment Cost

Most items made of these metals can be bought from specialized blacksmiths and markets according to their rarity. Below you'll find the normal prices of equipment. If you have forged these items, the listed prices and rarities are the ones suggested for your campaign to balance their relative power. However, you can increase or the decrease these depending on the relative scarcity in magic items of your campaign.

As for distribution of items in your campaign, you are free to determine how likely some metals and their resulting equipment are spread throughout.