Defeat Avarice.

Story-related; unmissable.

Combat tips: Before engaging in attacking him, run around the area to pick up the items as some do spawn as health shards as they will be needed in this battle. Avoid his object-throws by standing behind the pillars. Try to perfect dodge as he pounces on you to unleash 'Y' Arcane attack. When he uses refrigerators as attack objects, he tends to swing at you 3 times if you don't dodge-counter those attacks. With skull attacks, he only swings once. Also, only use Wrath attacks when he is holding an item, otherwise you'll just waste it on a hit or two as he is fleeing.