While most Artificers develop inventions of wondrous power, Chirurgeons use their great intellect to modify their own bodies. They replace and improve their own limbs and organs with mechanical inventions, striving to create a perfect version of themselves. Chirurgeons are known for the impressive, and deadly, modifications to their bodies.
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### 3rd Level
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##### Modular Physique
You can improve your physical form with mechanical and arcane enhancements. Your body itself counts as individual items for the purposes of [[Artificer#Arcane Infusions|Arcane Infusions]]: your head (helmet), torso (armor), arms (gauntlets), and legs (boots). Each of these body parts can bear one Infusion.
These modifications have also hardened your exterior. If you are not wearing [[Armour & Weapons#Armour|armour]], your [[Abilities & Skills#Armour Class|AC]] is equal to 10 + your Dexterity modifier + your Intelligence modifier. You can use a [[Arcane Spells#Shield|shield]] and still gain this benefit, and any [[Artificer#Arcane Infusions|Arcane Infusions]] incorporated into your torso benefit this AC.
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##### Chirurgeon Spells
You gain additional spells at the Artificer levels listed. They do not count against the number of spells you know.
| Artificer Level | Chirurgeon Spells |
| :-------------: | ------------------------------------------------------------------ |
| 3 | [[Primal Spells#Absorb Elements\|absorb elements]] |
| 5 | [[Arcane Spells#Alter Self\|alter self]] |
| 9 | [[Arcane Spells#Haste\|haste]] |
| 13 | [[Arcane Spells#Greater Invisibility\|greater invisibility]] |
| 17 | [[Arcane Spells#Skill Empowerment\|skill empowerment]] |
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##### Tools of the Trade
You gain proficiency with [[Gear Appendix#Leatherworking Tools|Leatherworking Tools]] and the [[Abilities & Skills#Medicine|Medicine]] skill. If you are already proficient with either, you instead gain proficiency with another [[Adventuring Gear#Tool Sets|Tool Set]] of your choice.
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### 5th Level
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##### Bonus Enhancements
You find it easier to innovate and invent when working with your own body. Your number of [[Artificer#The Artificer Table|Infusions Known]] increases by 1, but this bonus Infusion must be applied to part of your body with your [[#Modular Physique|Modular Physique]] feature.
Your total number of [[Artificer#The Artificer Table|Infusions Known]] increases by 1 again at 10th and 15th level, but both of these additional Infusions must also be applied to part of your body with your [[#Modular Physique|Modular Physique]] feature as well.
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##### Extra Attack
You can attack twice, instead of once, whenever you take the [[Actions in Combat#Attack|Attack]] action on your turn.
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### 10th Level
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##### Streamlined Integration
Your modifications perform better than the original parts. For each part of your body bearing an [[Artificer#Arcane Infusions|Arcane Infusion]] you gain a +1 bonus to Strength, Dexterity, and Constitution-based checks (maximum of +5), and your [[Physical Capabilities#Movement Speed|movement speed]] increases by 5 feet (maximum of 25 feet).
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### 15th Level
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##### Master Enhanced
You have finally achieved the goal of all Chirurgeon Artificers, ascension beyond your mortality. You gain the benefits below:
- You are considered a [[Creature Type#Construct|Construct]], in addition to any other creature types you have.
- You no longer need to eat, sleep, or breathe, and you no longer age. To gain the benefits of a [[Survival Needs#Long Rest|long rest]] you must perform four hours of mechanical maintenance on yourself or your body will fall into disrepair.
- You are [[Damage and Healing#Resistance|resistant]] to bludgeoning, piercing, and slashing damage.