Some more changes:
- Added Potion of Intervention (a custom, non-D&D potion) that restores the player's one time use death protection
- Potion of Intervention is only available from named traders, but is guaranteed to appear if the player lacks death protection and has sufficient GP (~500)
- Rebalanced monster CR to follow a standard distribution (balance still follows XP, not character level)
I've also increased XP gains by 5x temporarily on this version for faster testing.