Converging Realities

You converge your alternate self's from alternate timelines onto the same plane of existence you currently exist on for up to 1 minute or until the spell ends at which time the alternate self's return to the timeline they originated in the state they originated.

All copies share the current HP of the correct self. If you drop to 0hp the spell ends. 

While the spell is active all copies act as 1 within the same initiative roll however can act independently. Each has an action, bonus action, reaction and movement equal to your total movement.

Each spell/ability cast by an alternate self is cast as if you had cast it and expends its normal slot.

The number of alternate realities you wish to converge is decided at the time the spell is cast and can be up to the number of your intelligence modifier. The more realties you converge the more adverse effects you can expect.

1.  You take 1d8 necrotic damage per round for each self present on the same plane.
2.  At the start of each round make Intelligence saving throw (DC:15) on a failed save neither self can make a bonus action or reaction that round as you become confused as to who is the correct self.
3. When the spell is cast Roll a d20 If you roll below 10 you half the number of realities converged (round down) and take 1d10 force damage. 
4. you take 1d8 additional necrotic damage each round per self.
5. Roll a d100 when the spell is cast if you roll:

1-10 - you fail the spell entirely and take 2 points of exhaustion
11-49 -  The spell is cast however the damage taken is doubled each round.
50-94 - the spell is cast normally
95-100 - the spell is cast perfectly and the other negative effects do not occur for the entire duration.

As a bonus action your original self can decide to return any number back to their own timeline, diminishing the negative effects from the following round.