Perfectionists refuse to accept any standard short of perfection, they aim to be the best version of themselves and their goal is to be as flawless as possible, on and outside of the battlefield. This purist efficiency often comes with high self-criticism and fear of failure, which can cause a lot of stress. But that is the burden which Perfectionists carry with pride.

They hold high standards, not just against themselves, but against others, so they often use their expertise to help others reach their full potential too.

Perfectionists are rarely satisfied, but when they are, they are able to shrug off debilitating effects and calm their nerves, thanks to their high self-worth.

Perfect timing is an important aspect of Perfectionists. They are capable of capitalizing small windows of opportunity created by a reliable ally.

An experienced enough Perfectionist may seem untouchable on the battlefield.

Perfect Offense

Dealing blows fuel your self-esteem and improves your combat capabilities, while taking blows do the reverse.

Each time you hit a creature, you gain 1 rank. 

You get a bonus to attack and damage rolls equal to your rank: D=0, C=1, B=2, A=3.

Every time you take damage, you lose 1 rank.

You can only gain and lose 1 rank per turn.

When combat starts, you begin in rank D and lose all rank at the end of combat.

Leadership

Your experience with the Continent, nevrons and the Paintress allows you to guide others on their expedition.  As a reaction, when a creature within 60 feet of you makes an ability check, attack roll or saving throw, you can give them a bonus equal to twice your proficiency bonus. You can use this feature a number of times equal to your proficiency bonus and regain all uses after finishing a short rest. Using this feature will give you one stress point. For each stress point you have, you get a -1 for ability checks, attack rolls and saving throws. You lose all stress points after finishing a long rest.

Pureification

You are able to shrug off debilitating effects and calm your nerves, thanks to their high self-worth. As a bonus action, you can end one condition afflicting yourself. The condition can be blinded, deafened, paralyzed, or poisoned. You can use this feature a number of times equal to your proficiency bonus and regain all uses after finishing a short rest. You lose all stress points.

Follow up

You are capable of capitalizing small windows of opportunity created by a reliable ally. After an ally hits a creature, you have advantage, when attacking that creature, until the end of that ally’s next turn.

Perfect Defense

As an experienced Perfectionist, you are nearly untouchable on the battlefield. As a reaction, which you take when you are hit, you can turn the hit into a miss. 
You can use this feature a number of times equal to your proficiency bonus and regain all uses after finishing a long rest.
In addition, you gain a bonus to your AC equal to the reverse of the bonus you get from perfection: D=3, C=2, B=1, A=0.