ToME: the Tales of Maj'Eyal

I admit, this idea comes from the Diablo series. We currently have health and mana potions, but why not stamina potions? It is true there are other stats such as equilibrium, positive energy etc. that do not have potions as well, but stamina strikes me as closer to health and mana than those other ones do. Thought?

I suspect this is as much a backdoor-nerf of archers as anything. At some point if there were piles of 'lesser stamina' junk in your inventory, would archers above level 12 or so ever use normal "Shoot"? Now this requires some simple strategy.

Stamina is a different mechanic in Diablo, granted every class uses mana so every class benefits from mana potions.

In tome, mana using classes are pretty much SOL when they run dry. Stamina classes can still attack. Which is to say a mana users damage potential is finite and a stamina based classes isn't. I haven't really played with the other resources enough to comment on them.

Maybe a Rejuvenation potion that's relatively rare, restores some health and some of whatever resource the character uses rather then adding a potion for every resource or a potion for stamina?

Yeah as taxo said mages without mana are dead, while without stamina you can still function. Also warriors have multiple talents to help with stamina.
Posivite/negative energy "auto" refills and equilibrium filling up is part of it's design

Now I still like this rejuv idea I'll let it roll in my head for a while

Sounds good!