So since some Beast Mastery pet exotic abilities are present and some missing, I went down through the list. Here’s everything:
1. Aqiri: Dune Strider – Missing
2. Carapid: Calcified Carapace – Present
3. Chimera: Froststorm Breath – Present
4. Clefthoof: Blood of the Rhino – Missing
5. Core Hound: Molten Hide – Present
6. Devilsaur: Feast – Present
7. Pterrordax: Updraft – Missing
8. Shale Beast: Shimmering Shale – Missing
9. Spirit Beast: Spirit Mend – Present
10. Stone Hound: Eternal Guardian – Present
11. Water Strider: Surface Trot – Present
12. Worm: Burrow Attack – Present
I don’t really see any rhyme or reason to it.
Shimmering Shale is arguably less powerful overall than Calcified Carapace. Both are useless in their current incarnations. My Krolusk is showing a damage reduction of 19 per attack on a total health of 14,279. Whee! If Shimmering Shale still existed, it would be the same but for magic damage.
Updraft is still provided by Feathermanes and the similar mobility ability Surface Trot is still there.
Dune Strider has no direct equivalent, but a pet speed boost has been available in one form or another since at least Wrath.
Blood of the Rhino was a cut better than other exotic abilities because it was two abilities wrapped in one.
Burrow Attack and Froststorm Breath are still useless.