why dont we create a Gambler , You bring him 1x fire ring , 1x water ring , 1x earth ring , 1x wind ring , 1x 5% , 1x 10% + w/e and the npc give you a Ring with randomize stats .
exemple :
30 fire resist,5% mr (low grade)
30 wind resist, 10% mr (med grade)
+8 resist all , +5% (low grade)
etc etc etc
We could even add Poly ring / teleport ring and add (high grade) to the randomizer.