Shardbound Familiar (Khyber) [Familiar]

Paragon Tier
Prerequisite: 11th level, Arcane Familiar feat
Benefit: Whenever you bloody an enemy adjacent to your active familiar with an arcane power, that enemy also takes ongoing 10 acid, cold, fire, lightning, necrotic, or thunder damage (save ends).

Published in Dragon Magazine 377, page(s) 35.