Thanks to your abyssal heritage, you have superior vision in dark and dim conditions. You can see in dim light within 60 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.

 Your hit point maximum increases by half your level (minimum 1).

 Each time you finish a long rest, you gain the ability to cast cantrips and spells randomly determined from a short list. 

You can cast a spell gained from this trait only once until you complete your next long rest. You can cast a cantrip gained from this trait at will, as normal.

At the end of each long rest, you lose the cantrips and spells previously granted by this feature, even if you did not cast them. You replace those cantrips and spells by rolling for new ones on the Abyssal Arcana Spells table. Roll separately for each cantrip and spell. If you roll the same spell or cantrip you gained at the end of your previous long rest, roll again until you get a different result.

Abyssal Arcana Spells (d6)

For each result, 2nd and 3rd level spells are granted at the 3rd and 5th levels respectively and the spell save dc is 15.

1 - Dancing lights, Burning hands, Alter self, Blinding Smite

‍2 - True strike, Charm person, Darkness, Catnap

‍3 - Light, Magic missile, Invisibility, Fireball

4 - Message, Cure wounds, Levitate, Beacon of Hope 

‍5 - Spare the dying, Tasha's hideous laughter, Mirror Image

‍6 - Prestidigitation, Thunderwave, Spider climb, Lightning Bolt