Thalnok

Thalnok, Fanatic of Crota is a Hive entity that is one of three possible weekly encounters summoned from an Antiquated Rune.

Tactics
Thalnok is fought in the same way as Crota, except that health regeneration is enabled, the Swordbearer is replaced with a Hive Knight named Hagrist, Blade's Edge which behaves identically to a Swordbearer, and that there is no Oversoul. Other than these changes, the fight is identical.