I just started playing this game last night. It seems like a fun little time-waster, I'll definitely be playing it some more.
I haven't gotten much further than the tutorial, but can you describe what this is?
Edit: Is "pots" shorthand for "potions"?
Sorry took a few days away from my PC.
When you hit level 20 you can go to the middle of the map (Refered to as Godlands) and fight extremely powerful monsters. If you scroll out your minimap you can't miss the giant chunk of people in the middle almost all of whom are level 20.
If you join in fighting the gods and deal enough damage they all have a chance to drop a purple loot sack. These can only be looted by you they're essentially soulbound. Each type of god has a chance to drop a stat increasing potion (Defense Attack Vitality etc).
All of your stats have a maximum value eg. 25 defense, 50 attack etc and it changes depending on class. The goal is to max these stats to have what is referred to as a 8/8 character. However if lets say you chug 6 defense potions then die you've lost 6 defense potions and have to start all over. That's why it's advised to store them in your vault till you have at least the 25 defense potions (40 for knight) so you can survive in godlands a lot better and do not get 1 shot by gods.
I have to go now but I'll talk about gear as soon as I get back because gear is the hugest pain in the ass in this game.