Rules scope: This guide uses the published 2014 Sorcerer and the Divine Soul origin from Xanathar’s Guide to Everything. The earlier “Celestial Bloodline” features were not identified to a published source and are not presented here as official class rules. Ask your DM before using any homebrew subclass.
Use Divine Soul for the official celestial-themed origin
Divine Soul makes the source of a Sorcerer’s magic divine. Its Divine Magic feature gives one additional spell known at Sorcerer level 1 based on an affinity you choose. When you learn Sorcerer spells, you can choose from either the Sorcerer or Cleric list, but you remain limited by the Sorcerer’s spells-known total and spell-level access. You do not prepare the full Cleric list.
At level 1, Favored by the Gods lets you add 2d4 to a failed saving throw or missed attack roll. It costs no Sorcery Points and returns after a short or long rest. At level 6, Empowered Healing lets you spend 1 Sorcery Point when you or an ally within 5 feet rolls dice for spell healing; you can reroll any number of those dice once per turn and use the new rolls.
Aasimar, Half-Elf, and other species
Choose a species as a separate character option. Legacy Aasimar and revised MotM Aasimar have different ability-score and feature rules; use one complete species package. Aasimar Healing Hands is separate from Divine Soul’s Empowered Healing, and the latter is triggered by spell healing dice. An Aasimar transformation does not become a Sorcerer subclass feature.
Half-Elf, Fire Genasi, and other options can also support the concept. Apply only the ability-score rules and racial spells from the selected source. A species spell does not automatically increase Sorcerer spells known, and subclass spell access remains subject to the Sorcerer feature.
Build priorities and spell choices
Charisma drives your spell attacks and save DC; Constitution supports hit points and concentration; Dexterity helps AC and initiative. A 27-point-buy base of Strength 8, Dexterity 14, Constitution 14, Intelligence 10, Wisdom 12, and Charisma 14 is legal before species increases. Apply the campaign’s chosen ability-score rules once.
Choose spells around the party’s needs. Healing word restores an ally at range as a bonus action; bless supports several creatures with concentration; guiding bolt can deal damage and aid the next attack against its target. These are examples, not a requirement to build as the group’s sole healer. Sorcerer spells known are limited, so avoid choosing several spells that all fill the same job.
Metamagic and action economy
Quickened Spell costs 2 Sorcery Points and changes an action spell to a bonus action. Under the 2014 rule, if you cast a spell as a bonus action, the spell cast with your action that turn must be a cantrip with a casting time of one action. Quickened guiding bolt followed by an action scorching ray is not legal; Quickened guiding bolt followed by an action cantrip is.
Twinned Spell costs points equal to the spell’s level (minimum 1), and the spell must meet its target restrictions. Twinning haste costs 3 Sorcery Points. Careful Spell makes chosen creatures automatically succeed on their saves, but a successful save can still take damage when the spell says so. Subtle Spell removes verbal and somatic components, not material components, and does not guarantee an undetectable casting.
Official and homebrew boundaries
Published rules establish Divine Soul as the official divine Sorcerer option covered here. If a table wants a custom “Celestial Bloodline,” agree on its source, feature text, balance, and edition with the DM before play. Do not combine unknown custom healing pools, resistance, bonus damage, and expanded spell lists with official Divine Soul or Aasimar features unless the DM explicitly approves those rules.
Healing has distinct triggers and limits
Divine Soul’s Empowered Healing is not a pool of healing dice. At level 6, it lets you spend 1 Sorcery Point when you or an ally within 5 feet rolls dice to determine healing from a spell, then reroll any number of those dice once per turn and use the new results. It cannot reroll damage dice or healing from a nonspell feature such as legacy Aasimar Healing Hands.
Favored by the Gods is a different feature: after you fail a saving throw or miss with an attack roll, add 2d4 to the roll. It costs no Sorcery Points and recharges after a short or long rest. Keep the trigger and recovery separate from spell healing and from any homebrew resource pool.
Play the support role without losing Sorcerer strengths
A Divine Soul can learn healing and support spells, but remains a Sorcerer with a limited spells-known count. Coordinate with Clerics, Druids, and other healers so the party covers key needs without duplicating every spell. Healing Word can restore an ally from range as a bonus action; because of the 2014 bonus-action spell rule, your action spell that turn must be a one-action cantrip. A spell slot spent restoring hit points is one you cannot use for control or damage, so use healing when it meaningfully changes the next turn.
Charisma supports social play and spellcasting, but species ability increases depend on the exact legacy or revised source. Do not mix fixed 2014 Aasimar increases with the revised species’ choices. Likewise, a species resistance does not automatically stack into immunity if another feature grants resistance to the same damage type.