Resistance & Weakness

Resistance

A creature with resistance to a damage type reduces damage of that type by its resistance value. Each instance of resistance applies only once per source of damage.

Weakness

A creature with weakness to a damage type takes additional damage of that amount. If a creature is hit by damage matching its weakness, it takes the weakness value as extra damage.

Immunity

A creature immune to a damage type or condition takes no damage of that type or is unaffected by that condition entirely. Immunities override weaknesses: if a creature is immune to fire and also weak to fire, the immunity prevails.