
Orb effect stacking more than it should

In arena somebody was using Powerful Orb of Retribution and it stacked the effect 6-8 times. As the effect only lasts 3 turns per orb you should not be able to stack it more than 3. I tried using said orb against a shersher my level using no magic and using the orb every turn. I did not miss any attacks and still could only stack it 2-3 times. The person I was fighting was using magic on occasion and I was fighting him for most of the arena battle. Therefore it should not have stacked so much, lowering my physical attacks to around 60 and having around 30%(?) rebound. Can you fix this?