Furieum sizes differ between one another but you start out as a small Furieum that is roughly 2-3 feet tall, and weighs about 128-192 lbs. You can increase your size, In order to do so you must fuse with more metal when you do you are unable to take any actions until the process in complete. It takes 1 hour to absorb around 1.6 lbs of metal to increase your mass. To gain 1 foot in size it will take you roughly 64 lbs of metal which is about 40 hours.

Your Ability Score bonus is based on your size. As you increase your mass your Ability Score bonus changes with your size. Your Ability Score will not stack when you change sizes an example would be if your size is small then you become medium sized you lose the Ability Score bonuses for being small and gain the Ability Score bonuses for being medium.

• Small: Your, Dexterity +2, Intelligence -2
• Medium: Your Strength +1, Dexterity +1, Constitution +1, Intelligence +1
• Large: Your Strength +3, Constitution +2, Intelligence +2
• Huge:  Your Strength +4, Constitution +3, Intelligence +4
• Gargantuan: Your Strength +6, Dexterity -1, Constitution +4, Intelligence +5
• Colossal: Your Strength +9, Dexterity -3, Constitution +6, Intelligence +7
• Colossal plus: Your Strength +12, Dexterity -5, Constitution +9, Intelligence +9

Your weight depends on the mass you accumulated with some modifiers.

• Small: Your weight times 0
• Medium: Your weight times 1.5
• Large: Your weight times 3
• Huge: Your weight times 6
• Gargantuan: Your weight times 10
• Colossal: Your weight times 15
• Colossal plus: Your weight times 21

Metal absorbed by you never erodes, corrodes, ages, becomes purified, and of pure quality.

Furieum do not age they grow sentience when they accumulated enough metal. they usually gain awareness when their bodies have roughly 50 lbs of metal which can take a long or short period of time depending on their access to metal. When metal is readily available they can gain sentience in less than a year or upwards to a few years. Once sentient the Furieum usually have the mental capacity of a small child, their intelligence increases the more mass they gain.

You are proficient with your unarmed strikes, which deal 1d6 slashing damage on a hit.

Your unarmed melee attacks cause an extra 1d4 damage to fey, undead, and fiends. Your attacks also counts as magic weapon attacks against these creatures for purposes of immunity and resistance. If attacked by fey, undead, and fiends that make contact with you (i.e. bite, slam, touch, etc.), the attacker takes 1d4 damage.

Whenever you are subjected to fire damage, you take no damage and instead regain the number of hit points equal to the fire damage dealt.

You are immune to any spell or effect that would alter your form that isn't your ability to gain size by absorbing metal.

You have advantage on saving throws against spells and other magical effects. You also have disadvantages when using spells.

You are immune to corrosion whether it is magical or non-magical.

30 ft.

90 ft.

30 ft.

You can speak, read, and write Undercommon, and Dwarvish.