Grim Dawn Fangs of Asterkarn Onslaught Stacks
Learn the official Grim Dawn description of Fangs of Asterkarn Onslaught stacks and the conditions that consume them.
The official combat guide says some Fangs of Asterkarn abilities generate Onslaught stacks. After an ability generates stacks, casting a cooldown ability that is neither a debuff nor a pet-scaling summon consumes them for increased damage; auto-cast cooldown item procs do not consume or benefit from the stacks.
Source-bound detail
The guide states that each stack increases the cooldown skill's damage by 15%. Treat this as current-guide wording and check in-game descriptions after patches rather than applying it to abilities the guide does not name.
Source
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