Although for Pride (L) weapons that show up in advents and raids, don't expect them to get FLB (at least, not within the next year), so they'll eventually be replaced.

We haven't seen Pride (M) or Pride (S) in our version yet, right? Cause the math gets a bit less straightforward to calculate in your head with them. At least, in comparison to Pride (L) basically being Assault (S) with the bonus of 1% assault for every 5% HP you're missing.
Pride (M) bumps the bonus down to 0.6% assault for every 5% HP. Pride (S) is that, plus reducing the base assault bonus to 0.35 * skill_lvl, so it's 7% at lv 20 instead of 10%. It's like... take Assault (S), then reduce it by a step.