Source: Volo's Guide to Monsters

• Ability Score Increase. Your Charisma score increases by 2.

• Age. Aasimar mature at the same rate as humans, but they can live up to 160 years.

• Size. Aasimar have the same range of height and weight as humans. Your size is Medium.

• Speed. Your base walking speed is 30 feet.

• Darkvision. Blessed with a radiant soul, your vision can easily cut through darkness. 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.

• Celestial Resistance. You have resistance to necrotic damage and radiant damage.

• Healing Hands. As an action, you can touch a creature and cause it to regain a number of hit points equal to your level. Once you use this trait, you can't use it again until you finish a long rest.

• Light Bearer. You know the Light cantrip. Charisma is your spellcasting ability for it.

• Languages. You can speak, read, and write Common and Celestial.

• Ability Score Increase. Your Dexterity score increases by 1.
• Age. You mature at the same rate of an elf, but you can live up to 1,000 years.
• Fey Ancestry. You have advantage on saving throws against being charmed, and magic can't put you to sleep.
• Trance. You don't need to sleep. Instead, you meditate deeply, remaining semiconscious for 4 hours a day. After resting in this way, you gain the same benefits that a human does from 8 hours of sleep.
• Extra Language. You can speak, read, and write elvish.
• Guidance From the Past. Starting at 3rd level, you can use an action to draw from your connection to your ancestors. Misty tendrils flow around you, whispering advice that only you can hear.
  • Your transformation lasts for 1 minute or until you end it as a bonus action. During it, you gain advantage on all Wisdom checks and saving throws.
  • Once you use this trait, you can't use it again until you finish a long rest.

• Ability Score Increase. Your Constitution score increases by 1.
• Shroud of Life and Death. Starting at 3rd level, you can use your action to awaken the power in your blood, causing a nimbus of crimson energy to flow out from out of you.
  • Your transformation lasts for 1 minute or until you end it as a bonus action. During it, you shed dim light in a 10-foot radius, and at the end of each of your turns, one creature within 30 feet of you takes necrotic damage equal to half your level (Rounded up). In addition, if you or an ally within 30 feet drops to 0 hit points without being killed outright, you can use your reaction to preserve them, causing them to drop to 1 hitpoint instead. When you use this reaction, it ends your transformation early.
  • Once you use this trait, you can't use it again until you finish a long rest.