Chronal Spark

You create a small spark of temporal energy and hurl it at a target within range. Make a ranged spell attack against the target. On a hit, the target takes 2d4 force damage. Additionally, the target has disadvantage on their next attack roll or Strength saving throw until the end of their next turn. 

This spell's damage increases by 2d4 when you reach 5th level (4d4), 11th level (6d4), and 17th level (8d4).