Curse of the Blind Stars

Paragon Tier
Prerequisite: 11th level, warlock, Warlock’s Curse class feature
Benefit: When you hit a cursed foe with an encounter or daily warlock attack that causes radiant damage, you can forgo dealing Warlock’s Curse damage to instead cause the target to become blinded until the end of your next turn.

Published in Dragon Magazine 384, page(s) 31.