Bro, why not just make all the damaging reaction maneuvers scale together and work off your secondary stat?
Levels 1 - 4: 1d4 + Int/Wis mod damage
Levels 5 - 8: 1d6 + Int/Wis mod damage
Levels 9 - 10: 1d8 + Int/Wis mod damage
Or
Have them work like cantrips. 1d8 damage and then at level 5 (tho you could do later) have it upgrade to 2d8?
This way things stay simple yet consistent?