Well, i dont work for KI but i believe they added it to be a challenge not just a one kill and a oh look i got my balance ring or hey look i got my myth ring and put it in the bank. If you truely got a method to kill orrick its easy all ya got to do is keep owning him. For example i got my storm ring tonight, all we did was blade really good then attack on the same round (btw my triton did over 4200 ) and it goes by super fast. if they made it so you can trade it would take the challange out of it :P
As we come to the final boss it's hard i got a fire ring by sirprise they said fire power lvl would not go father than what i had but sure then no trade i felt awful cause i got it on my death so it was just sad anyways i have seen crazy drops.