Both Whispers caches and Helltide chests will drop higher Item Power rewards starting with Season 2! This change is part of Blizzard’s continuous efforts to optimize item progression in Diablo 4, giving players more and better ways to obtain item upgrades.
Normal Whisper cache rewards now provide +10 Item Power. Upgraded caches now provide +20 Item Power rewards.
Helltide cache rewards now provide of +20 Item Power value.