You fill a 45-foot-radius, 10-foot-high cylinder area of your choice within range with swirling chromatic energies. Any creature which starts its turn within or enters the area takes 1d4 fire damage, 1d4 poison damage, 1d4 lightning damage, 1d4 cold damage, and 1d4 acid damage. A creature with a vulnerability to any of these damage types must made a Constitution saving throw or be paralyzed for the duration. At the end of the spell's duration, any creature remaining within the area takes 6d4 radiant damage, as the energies converge to form a spire of radiant flame reaching up to 300ft. The spire sheds bright light in a 120ft radius.
At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage (both initial and later) increases by 1d4 for each slot level above 2nd.