- Not available on that edition (the reason is in the tooltip)
- Depends on the setting, your class or another addon (details in the tooltip)
What it does
Checks the lowest, average or highest health percentage among party or raid members within the distance you set of the unit specified, compared with the percentage you set.
Why you might use it
Take the minimum, average or maximum health percentage of party or raid members within a distance of a unit, and compare it. Average suits group heals and cooldowns, such as Tranquility, Prayer of Healing or Divine Hymn when the group's average health drops below 70%, and minimum finds the single most injured ally. Not available on Retail or Forever, where the game hides health values from addons. See also Health Percentage Count Within Range and Health Percentage.
Example
The average health percentage of Raid or Party members within 30 yards of you is less than 70%
Settings
What each setting in the condition editor means, from the game's own help.
Unit - The unit this condition uses as the target of comparison.
Operation - Mathematical operation to perform
Minimum - The lowest value
Average - The value that is the sum of all values divided by the number of values
Maximum - The highest value
Operator - How to compare Health Percentage Within Range with the Health value. This comparison uses basic mathematical comparison operations.
Health - The health percentage the Operation result is compared with: the lowest, average or highest health of the allies counted, each as a percentage of their total health.
Distance - The distance (in yards) allies are measured against.
Same Group - Only count units in the same raid group.
Include Pets - Include pets in the count.
Uses readable positions in the same instance, or player-centered range estimates when positions are unavailable. A unit counts only when its upper range bound is within Distance. Uncertain positions, range, subgroup membership or required health/mana values keep the whole condition unavailable, including under Unless. Percentage checks require a positive maximum; empty aggregates have no result.