http://www.runesdatabase.com/item/205019
I believe in the patch notes the requirements changed for this ring are:
Guild Drill Ground: Destiny
The exchange rate for 50 Lucky Badges has been adjusted from 5 to 1 Destiny Ring (with the drillmaster).
So I was just wondering about what the rings do,
Do they disappear after a first time use?
What speed does it increase? attack/move/casting all o.O
Any information is appreciated >.< all I have been able to find is that this ring is from drill ground training course destiny and your drill ground has to be rank III or something q.q