Blizzard is making some updates to Preservation Evoker’s healing range in the next Dragonflight Beta build.

(Source)

In the next beta build, we are making some updates to address concerns regarding Preservation Evoker’s healing range. We have been reading feedback and observing playtests, and agree that the 25 yard range is a little too prohibitive when combined with the frequent casting requirements of empower spells. To address this, we’re doing the following:

All of Preservation Evoker’s healing and utility spells will now be at 30 yards baseline.

The cooldowns for Dream Breath and Spiritbloom are being increased slightly, with Preservation’s overall healing efficacy being increased to compensate.

This should mean you have to stand still and cast empower spells less often, but when you do they will be more impactful, and your healing in-between those moments will also be more impactful.

Hover will now have a shorter lock-out time, so you can more quickly cast spells after using Hover.

We are interested in delivering on a mobile, mid-range healer. We want to make sure tools like Hover, Verdant Embrace, Echo, and Rescue are flexible and powerful enough to compensate for a lower range. Please continue testing and providing feedback, and let us know if these tools are working well alongside the changes above. We will continue to listen to feedback and make sure Evoker is a powerful and exciting new class to play!