Every Sunday (usually), Spiritual Guidance will offer practical insight for priests of the holy profession. Your host is Matt Low, the grand poobah of World of Matticus and a founder of No Stock UI, a UI and addons blog for WoW. What exactly is Lightwell? How is it used? Why does no one use it?
Oh Lightwell. The things you could have been. Misunderstood by many and under-talented by a large number of Priests. Will you ever see raids?
Perhaps not. But we can try!
The first thing Lightwell novices need to understand is the purpose of the spell. It creates a Holy Lightwell wherever you want it that any player can interact with. A player who uses it gains a charge that heals them for more than 4500 health over a period of 6 seconds. It's got a 40 yard placement range. Be sure you pick up the Lightwell glyph for it. A 20% boost to Lightwell ticks go a long way and will help make this talent even more worthwhile.
There is a slight downside. If the player under the effect of a Lightwell charge takes a hit that's 30% of their total health, the effect disappears.