Diablo 4’s divisive third season is underway, and while the Vaults themselves aren’t a smash hit with players there is a way to juice up the loot you’ll be granted for completing them: by using a Pearl of Warding.
How to Get Pearls of Warding
Pearls of warding are dropped by Heralds of Malphas, which can be summoned at special Braziers in the overworld near Arcane Tremors (marked on the map by the green leaf Season symbol). To summon a Herald of Malphas, you’ll need 3 Elemental Cores and 50 Shattered Stone. Shattered Stone is dropped by any Construct enemy, so you should be swimming in the stuff if you spend any reasonable amount of time near the Arcane Tremors.