Why does my Sapphire Crystal disappear when I purchase Catalyst the Protector?
This game gives you 6 inventory slots, but for me it's not clear what rules are used by the system to replace an existing item when I buy a new one.
For example if I already have 2 swords, buying a third one replaces one of the two (I hope the game chooses the less powerful one...) instead of adding a third sword to the inventory. Makes sense, I guess. However 2 swords with a dagger are allowed and for orbs I cannot even recognize a pattern.
So, how can I understand which item (if any) will be replaced when I buy new gear?