Memento Mori

When a player's HP drops to 0 or below, they enter Memento Mori. A system that decides the grizzly fate of the player.

The player must roll 1D4. The results will be:

4: The player suffers a Grievous Injury and is replenished back to 1 HP.
3: The player is sent to the Dying state.
2: The player suffers both a grievous injury, AND is sent to the Dying state.
1: The player dies.

If the player's HP drops to or below a negative number equal to their Constitution score, the player still rolls for Memento Mori, and dies immediately afterwards.