You summon a celestial of challenge rating 4 or lower, which appears in an unoccupied space that you can see within range. The celestial disappears when it drops to 0 hit points or when the spell ends. The celestial is friendly to you and your companions for the duration. Roll initiative for the celestial, which has its own turns. It obeys any verbal commands that you issue to it (no action required by you), as long as they don't violate its alignment. If you don't issue any commands to the celestial, it defends itself from hostile creatures but otherwise takes no actions. The GM has the celestial's statistics.
RollQuest summary At Higher Levels. When cast with a 9th-level spell slot, you summon a celestial of CR 5 or lower.
SRD 5.1, pp.127–128 · CC BY 4.0
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Cast Conjure Celestial on a real battle map. Pick a caster and a target and RollQuest plays the effect for everyone at the table. Free to start.
Run Conjure Celestial through our free DnD character sheet
Give Conjure Celestial to your character and cast it straight from the sheet. RollQuest rolls the dice with your spellcasting modifier, posts the total in chat for the table and keeps count of your spell slots. See how our DnD character sheet works, for 5e and 5.5e.