After taking a certain amount of damage the ring creates an explosion around the user for roughly 400 damage. The wearer is not harmed by the explosion. When activated it will make a distinctive sound followed by a short delay before exploding. This may warn opponents in PvP of the imminent explosion.
The effect of the explosion is stationary however and when it activates, there is a pinpoint that the blast emanates from. This can remain in one spot, even if the player rolls in any direction.