@Raijinslayer i'm going to make this simple..if Revan intervenes Ira won't fight anymore. Just wouldn't be fair. According to your description...Ring of Sloth would have no affect on Ira's attack seeing as its already left his hands. On the other hand if Ira's in range the ring will affect his personality
Ring of Sloth: This Greater Infernal Arm creates the Ultimate neutral zone, by taking away the will to fight, kill, or do anything other than lay around and chit-chat from any =one with in it's range of activation. Revan is not immune to these effects, but since he is already like that pretty much all the time, it doesn't affect him much. Also, an attack performed outside the radius towards him will fizzle out once it enters it, He can hold the zone for about 30 minutes to an hour, depending on how much energy he wants to expend into it, and is best used to talk down enraged opponents, or provide an easy escape from a trouble situation, as the area this effects is stationary, and only the one holding the ring and those in contact with him will be able to muster up the will to leave it's boundaries. Can only be used three times a day.