Blizzard
We are currently in the process of tuning Legendary items, so in this latest Shadowlands Beta build, you may see many a number of Legendary effects have had their power reduced.
We’ve recently had internal discussions about our tuning targets for Legendaries and concluded that we were aiming too low with respect to their power. We’re working through another tuning pass on all of these items, and you should see further adjustments in an upcoming build.