A while ago we crafted a Decoy ring for someone in our party. The description for it is as follows:
Whenever the wearer of this ring takes the withdraw action or becomes helpless (including falling unconscious), it instantly makes her invisible for 3 rounds and creates four illusory duplicates that either run off in opposite directions or perform other plausible actions that could draw enemy attention away from her. The duplicates last for 3 rounds before disappearing, but they instantly pop out of existence if struck by an attack (AC 10) and can be disbelieved (Will DC 19). Allies of the wearer always know her true location and can freely provide aid or assistance to her.
I want to know if this ring can be used multiple times per day. Our GM feels that it's overpowered as it is, and can't find specific ruling from PF that states it can be, but my thought is that it doesn't state that it has a limit on the number of times a day, and most equipment that limits that states so in the description.
A follow up, can a Withdraw action be taken any time, even when not in melee combat? I see that it's used as a part of melee combat, but it's not exactly clear on that detail.
I can follow my GM's decision that you have to be in melee combat to Withdraw, but I'm at odds with the idea that this can only be used once a day. Is it that overpowered that it should be toned down for a 12,000 gold ring?