Additionally, back in the day, before EOC, people did mobilizing armies to get onyx (i), which was at the time, the best in class ring.
Now, surgeon ring, vigor, death, leviathan ring all outclass onyx i.
What I'd like to see would be the ability to combine rings from MA. Combat ring with a utility ring. Surgeon with leviathan, for example, would not work as both are combat rings.
Vigor with wealth, ring of death with wealth (as all of them are used for temp switches)
Perhaps something like this..
Combat rings: Vigor, surgeon, leviathan, death, archer, warrior, seers, and archer/warrior/seers(i)
Utility rings: wealth, life, dueling, recoil, slaying, tokkul zo
Neutral rings: sapphire through onyx (i), including zerker (i)
You can combine the stats and effects of two rings, from one class (combat/utility/neutral), so they both have combined bonuses, but the bonuses do not exceed the highest ring.
So for example, death ring has +25 attack and defense, while zerker (i) has 17.. so that won't work as they death negates zerker (i).
Leviathan ring has +15 attack and +43 def, combine it with an onyx (i) for a single ring that is +21 attack and +43 with the negate damage ability
For rings that have charges, you would need to use a cut gem on the combined ring to recharge it. For ring of death you'd need to repair it with onyx as usual