another SEF question!
I'll add my opinion:
any fixed blade is essentially a sharpened prybar, especially those that are shorter and thicker stock (obviously).
While the tip is a fragile part of many fixed knives, and often the first to break, if you apply torque or lever the portion near the handle it's quite an effective prying tool.
The Aqua Salt, JM2, Temperance, Sprig, Moran, Caspian, Swick and especially the Enuff would do well in that, the stubbier the better, and 3mm+ thickness is adequate.
Also depends a lot on the heat treat and steel type, as we know many knives (KaBar and Ontario blades for instance) were planned to be bendable and elastic before breaking, especially at the tang.
Secure scales and good screws or other fixing methods are also important to avoid cracking and scales becoming separated.
Better if it's full tang or thicker, longer steel bar, in fact models like the Caspian or Swick are essentially prybars with an edge and different shape for that purpose, not considering their performance as a knife
and edge function.
For the prying aspect the sheath is irrelevant, really. Unless you're planning to pry with the sheath
For folders I'd say the Tuff, Shaman and Techno are useable prybars relative to their size,
meaning that they are thick enough, have durable construction and handle scales or material and a big strong pivot for that.
Obviously the pivot and the tip are the common breaking points in folders and the thicker stock and edge won't compensate for a poor or weak construction. Liners (nested or full) and good quality scales (stainless steel, G10, Titanium) are added strength to an already strong pivot and screws/standoffs
I've seen pivots broken or flying out and screws and scales cracking, bending and separating as well as many broken tips, but fractured blades or completely bent are a rare occurrence
But again, don't pry with your blades! Unless it's a fixed knife it's easy enough to carry a SAK, multitool, keychain prybar or other implements to lever with
Some knives (Emerson, Kershaw, CRKT etc.) even have built in prybars in the butt or folding