Deadly Concentration

Your mind has become a surge of power and you can use it to your advantage. 

As a bonus action you can fragment your mind. Breaking off and creating an image of yourself within 5ft of you at a target location. A fragment can not speak, move, attack, or defend itself. It has an HP of 0 and an intelligence of 1. While active your Intelligence score is reduced by the total cost of all fragments in play. 

A fragment is more or less your pure will of concentration, and will maintain concentration on a spell you've cast until the end of the spell's duration. After which time a fragment vanishes and returns all intelligence points used to create it back to you.

If a fragment becomes the target of a spell, is attacked, a creature moves to occupy the same space as your fragment, or is otherwise interacted with by an enemy (the only exception being if an enemy converses with a fragment), the fragment is destroyed (ending concentration on its spell) and forces the owner to make an Intelligence saving throw (The DC is the number of active fragments +10). On a successful save the fragment returns to your mind and you regain all Intelligence points used to create it. On a failed save you don't get the Intelligence points back until you've completed a long rest. You can alternatively dismiss a fragment (no action needed) and end its spell early, returning it to your mind and regaining the Intelligence points used to create it. Or if you move more than 40 ft. from a fragment it loses power and ends its spell early returning to your mind and regaining any expended Intelligence points.

Each fragment after the first cost 1 additional Intelligence point to create and maintain.