Negati (5e Subrace)
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Ability Score Increase. Your Constitution score increases by 1.
One With The Dark. You are resistant to necrotic damage.
Essence of Death. You know the chill touch cantrip. Constitution is your spellcasting ability for this spell.
Superior Darkvision. You can see in dim light within 120 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.