You have designed and built a sophisticated suit of armor,
which you are constantly optimizing and upgrading with the
latest technological breakthroughs. You begin play with one
suit of armor with an item level of 1 for free, or you can buy
any armor normally and designate it as your armor prototype.
You design and build this armor and, while it may be similar
in aesthetics and function to an existing type of armor, it is
fundamentally unique from any mass-produced product. Due to
its experimental design and custom fitting, you are the only one
who can benefit from wearing this armor. As you gain levels,
your armor prototype advances in sophistication. If you acquire
a different suit of armor, you can disassemble your existing
prototype and turn the new armor into your prototype with 8
hours of work.
Your armor prototype works as normal for a suit of its type, but it also gains specific benefits based on your mechanic level, as defined below. You can have only one suit of armor designated as your armor prototype at a time.
You gain proficiency in heavy armor. Your armor prototype’s hardness, HP, and save bonuses are calculated as if its item level were 5 higher.
While wearing your experimental armor prototype, you can bolster your defenses against certain attacks. As a move action, you analyze the weapons and attack patterns of one enemy you can see, programming your armor prototype with this information to improve your ability to defend against that enemy. You gain a +1 shield bonus to AC against the next attack from that opponent, as long as it occurs before the end of your next turn. This bonus increases to +2 at 8th level and to +3 at 16th level. Calibrating your defenses against another enemy causes you to immediately lose this bonus against the previous enemy’s attacks.
Your armor prototype’s efficient design allows you to install one additional armor upgrade beyond what that armor’s upgrade slots would normally allow. You must purchase the upgrade to be installed in this slot at its normal price.
You gain proficiency in powered armor. You can alter your experimental armor prototype to be identical to any suit of powered armor that has an item level equal to or lower than your existing armor prototype by spending 8 hours of work making upgrades.
You apply a single armor upgrade with an item level of no more than half your mechanic level to your experimental armor prototype at no cost. This customization does not take up an armor upgrade slot. You select an additional upgrade at 11th, 14th, and 17th levels. Each time you gain a level, you can swap out any of these armor upgrades for different upgrades, subject to the same restrictions.
Long hours of research and tinkering has taught you how to modify your experimental armor prototype on the fly. Your armor prototype grants you one of the following benefits: +1 to attack rolls, a fly speed of 50 feet (average maneuverability), a fly speed of 30 feet (perfect maneuverability), a swim speed of 30 feet, or darkvision with a range of 60 feet and low-light vision. With 10 minutes of work, you can change the ability granted by your prototype to any other one of these abilities.
Your experimental armor prototype gains an energy shield with a number of temporary Hit Points equal to your mechanic level. This shield remains active until all of its temporary Hit Points are depleted. These temporary Hit Points are fully restored when you regain Stamina Points following a 10-minute rest.
You perfect your experimental armor prototype’s adaptable defenses, bolstering your armor against a greater number of enemies. You can use your calibrate defenses ability to gain a bonus to your AC against a number of targets equal to your Intelligence modifier, spending a move action for each calibration.