I think it depends on the racial for the most part.
Something like underwater breathing should be something on multiple races. Itād be silly if only Forsaken had the ability to not breathe underwater, but races like Kelfin or Ankoan/Jinyu would be able to drown.
When it comes to racials where it does something in combat, itās something that could be shared, but a lot really depends on how Blizzard would look at it from a PvE and PvP perspective. I donāt see why it would prevent a race from having the same racial ability at all, but you never know what the thought process is.
Itās like with passive regeneration. Darkspear Trolls have it, but for Zandalari, itās a skill you have to activate that lasts only a small amount of time. Hard to know what the reason for that is, which in fairness, there couldāve been a reason for it other than to be different. Hopefully, passive regeneration would be something given to playable Saurok.
So itās entirely possible Saurok could have a tail swipe racial that knocks people down in the air. Itās also possible they could have something else to be different from Dracthyr. The good news is that there are plenty of ways to go about Saurok racials, including those involving tails.
Part of me feels like a tail whip racial might be more likely, given that several RL reptiles do that in order to get away from danger. It might be more fitting for them, since Saurok come from various lizards the Mogu found, and for Dracthyr, it is fitting since dragons are large beings that would have the strength to knock people in the air from it.
Also, I meant to link this, but MrGM did a video that shows off Dracthyr racials. Please note that this is from alpha, so things can always change:
Getting more and more excited the more I see of this expansion!
Playable Saurok for the Horde please!