It does for most rolls. For that one specifically, it doesn’t.
A crit wielding the everburn blade even doubles the 1d4 fire damage.
Pally Smites are doubled.
Weapon dice dmg rolls are doubled.
Battle master maneuvers (1D8) are not. So it rolls only 1d8 on crit.
I figured it would be 2d8 on crits.
