2 keena rings (give all stats)------base 45 all stats
2 hart rings (give attack)---------base 35 attack
2 set bonus: +100 all stats
4 set bonus: +1000 attack
This ring is unique because you focus 99% of your energy on the 2 all stat rings instead of the 2 attack rings.
Follows grade A progression so +12 is 45+(100-25) which is 120 all stats.
This brings your total to 120+120+100 all stats and 35+35+1000 attack (340 all stats 1070 attack for 4 ring slots)
Thats the equivalent of having 4 rings with 85 all stats and 267 attack. Only a little weaker than 4 silva feathers +12.
How you get it is simple and Karazy already knows how to get these in game.
EDIT: Dont bother buying it from any players in game the playwith staff have been instructed to delete any ph rohan items that are traded off those accounts.