Dire radiance

Dire radiance is among the most basic spells known to warlocks of the star pact. Dire radiance, when cast, allows the warlock to call forth a shaft of brilliant, chilling light from the heavens, using it to cause excruciating pain to a creature within fifty feet. If the creature attempts to approach the warlock, the beam intensifies, causing even greater pain. The potency of dire radiance is largely determined by the constitution of the warlock casting it.