Pernicious Onslaught

Heroic Tier
Prerequisite: You have a spellscar
Benefit: When a creature fails a saving throw against ongoing damage from one of your attacks, one creature adjacent to it takes fire and necrotic damage equal to the ongoing damage. If you have the Student of the Plague feat, the damage is equal to the ongoing damage plus 5.

Published in Dragon Magazine 385, page(s) 24.