Quantum Warrior

After studying quantum mechanics and training with its properties you have gained several related abilities, greatly improving your martial prowess. Through splitting yourself between multiple possible realities you gain several advantages over others. idk what else to put here.

Split Quantum Selves

At 3rd level, you gain the ability to split yourself into two identical creatures, known as your Quantum Selves, as a bonus action. Each Quantum self shares your hit points, equipment, AC, appearance, turn in combat, and active effects. Equipment worn or held during this are also split and can be used by one or both of your Quantum Selves. Your Quantum Selves start in the space you were in when you used this ability and may share a space, seeming to overlap as though they were alone in that space. You may stay in this state for no longer than 1 minute. While split you gain the following benefits:

• Your Quantum Selves share their scenes and you perceive the world as though you were in both of their squares at the same time. When the DM deems appropriate you may gain advantage on Wisdom (Perception) checks due to your multiple sets of scenes.

• Your Quantum Selves share their action, bonus action, reaction and any limited use abilities such as action surge or spell slots. When taking any action you may choose for it to be done by either of your Quantum Selves, for example if one takes the attack action the other may not take an action on the same turn but could make any appropriate bonus action.

• Your Quantum Selves do not share their movement and may move up to your movement in any way you see fit. Your Quantum Copies may not move more than 50 ft away from each other and it is as though there were an invisible tether keeping them together. If any effect would move them further than 50 ft apart then your quantum selves reform into you at either of their locations (your choice) and this effect ends.

• You may end this effect at any time during your turn and reform into yourself at either of your Quantum Selves' positions (your choice). When reforming any equipment that was split also reforms at either of its positions (you choose).

You may split this way a number of times equal to your proficiency bonus before needing a short rest to regain all expended uses.

Evasive Theory

Also at third level, you gain the ability to use your reaction to become quasi intangible until the beginning of your next turn. While in this state all attacks against you have disadvantage and you have advantage on all strength, constitution, and dexterity saving throws. You may do this a number of times equal to your constitution modifier and regain all expended uses after a long rest.

Do and Do Not

Starting at 7th level, before you take an action that requires an ability check or attack roll you may choose to use this feature and roll the associated roll before taking the action. The DM tells you whether your roll is high enough to be successful and you may then choose to take the action or take another action instead. You may do this a number of times equal to your proficiency bonus before needing a long rest to do so again.

Entangled Attack

At 10th level you gain the ability to use a single attack multiple times. Immediately after an attack you can choose to make an additional attack against a different creature using the same attack roll as the previous attack. This attack can originate from either of your quantum selves if you are split. You may use this feature a number of times equal to proficiency bonus before taking a long rest to do so again.

Improved Theory

Starting at 15th level your increased control over your quantum prowess gives you the following benefits.

Quantum Selves can now be 150ft from each other and you can remain split for up to 5 minutes. 

When using you Evasive Theory you now become completely intangible. While in this state all attacks miss you, you automatically succeed all saving throws, and you cannot be targeted by any magical effect without your knowledge and permission.

Quantum Mastery

At 18th level you have gained such mastery over quantum mechanics and your technique that when split into your Quantum Selves they can each split into two identical Quantum Selves. In this way you can be split into no more than four Quantum Selves. In addition your Quantum Selves can be any distance from one another and last until you choose to reform them. If any effect would move one or more of your Quantum Selves into another plane then it automatically fails or moves all of your Quantum Selves at once (your choice).