An extra d6 already reads like an enormous trap option at high levels.
One d6 is 3.5 damage, which, even done twice a round is... Pretty much irrelevant at level 15. A maneuver that saves your bacon is damn sexy.
If 5e is like 3e and the rocket tag combat it might end up winning out, but at the end of the day if 4e taught us anything about melee strikers it's that glass cannons are made of... Glass. And you do zero damage when dead.
I doubt most rogues would be beyond 5d6 at 20 unless the other options are hellishly weak.
One d6 is 3.5 damage, which, even done twice a round is... Pretty much irrelevant at level 15. A maneuver that saves your bacon is damn sexy.
If 5e is like 3e and the rocket tag combat it might end up winning out, but at the end of the day if 4e taught us anything about melee strikers it's that glass cannons are made of... Glass. And you do zero damage when dead.
I doubt most rogues would be beyond 5d6 at 20 unless the other options are hellishly weak.