Rule: Damage

Your health is tracked in two ways, with Hearts and Injuries.

Hearts

Hearts measure temporary damage and are depleted during a Fight. You start every Fight with your full Hearts Total, regardless of any losses incurred in previous battles, and you start over at the Light Injury Table. Losing all your Hearts

When your Hearts drop to 0 you are still fine, but will now be at risk of rolling on the Injury Table, but if your Heart drop below 0, you have to roll on the Injury Table, and for each exceding Heart of Damage above 1, increase the Injury Table roll result by 1 instead.
If your Injury permits, you can Fight on with 0 Hearts but must now roll on the Injury Table every time you’re hit, and for each exceding Heart of Damage above 1, increase the Injury Table roll result by 1 instead.

If your Heart drop below 0 by the Elemental Injury Table, you don't roll on the Injury Table and it's not counted in the number of Injury taken during this Fight.

Reducing an adversary to 0 Hearts or below

When you reduce an regular adversary to 0 Hearts, they are still fine.
If its Heart drop below 0, they do not suffer an Injury, instead, you may choose to slay them or spare them.
The GM can determine some adversary like leader/boss can suffer Injury like the players.
A spared foe falls unconscious and wakes a few hours later with their Hearts restored.
If desired, you can also choose to leave them with an Injury of your choice, or leave them with a distinctive scar to remember you by.

Damages Types

Damage Types come in many flavors. Each can be more or less effective against a specific foe.
For example, a beast might be Immune to Physical Damage, Resistant to Necro Damage, but Vulnerable to Radiant Damage.

Damage Types :

Physical Damage is inflicted by non-magical weapons.
Magical Damage come from magical source, including Spell or even magical weapons.
Elemental Damage can also be Magic Damage sometime, but not always.
(Radiant, Necro, Fire, Cold, Lightning, Sonic, Poison, Acid)