A silvery beam of pale light shines down in a 5-foot-radius, 40-foot-high Cylinder centered on a point within range. Until the spell ends, Dim Light fills the Cylinder, and you can take a Magic action on later turns to move the Cylinder up to 60 feet. When the Cylinder appears, each creature in it makes a Constitution saving throw. On a failed save, a creature takes 2d10 Radiant damage, and if the creature is shape-shifted (as a result of the Polymorph spell, for example), it reverts to its true form and can’t shape-shift until it leaves the Cylinder. On a successful save, a creature takes half as much damage only. A creature also makes this save when the spell’s area moves into its space and when it enters the spell’s area or ends its turn there. A creature makes this save only once per turn. Using a Higher-Level Spell Slot. The damage increases by 1d10 for each spell slot level above 2.
RollQuest summary +1d10 per slot above 2.
SRD 5.2.1, pp.150–151 · CC BY 4.0
Try this spell in RollQuest
Cast Moonbeam on a real battle map. Pick a caster and a target and RollQuest plays the effect for everyone at the table. Free to start.
Make a caster for Moonbeam in our free DnD character creator
The builder walks you through class, species, ability scores and spells, then you cast Moonbeam 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. Try the DnD character creator, for 5e and 5.5e.