* I'm not sure what the motivation is for only having 2 active stat potions at a time. Potions are fairly useless, and they disappear after death. I'd let potions stack with more allowed -- at least 5.
* I'm not sure how it works right now, but I remember totem/mage buff effects not stacking. I think it would be great to have them stack. An area with many Torva mages should be dangerous because of their combined power. Same for evil totems stacking together.