This gem gives a 15% chance on hit (reduced by Proc Coefficient, and does not trigger off attacks of minions and pets) to hit a single random enemy within 25 yards, blasting them with a huge portion of Holy Damage and healing the character. This effect has no internal cooldown, only being limited by the player's ability to trigger it. Upgrading increases the amount of damage.
At rank 25, it also triggers automatically over time, regardless of normal procs.
This gem is of most use to Crusaders and Monks (who generally use Holy Elemental Damage skill bonuses), as well as Necromancers using the Grace of Inarius set. The effect itself has a Proc Coefficient of zero. Even though it is named smite, it is completely different from the Crusader's Smite.
Mirinae, Teardrop of the Starweaver
"It was said that once a year, the two lovers would arrive at opposite river banks. A bridge of birds would form so they could touch. When they parted, their tears filled the land. Mirinae is one such tear. The sadness and rage in its core will only affect those close to it." — Scholar Sojin Hwang