Booshka said:It's unlimited, the theory is that it reduces the time in-between invasions, so spamming it over and over in an area with a lot of possible invasions can get you invaded quicker, I believe. I have tried it a lot myself and haven't noticed much of a difference, but sometimes I think it works, or it's just a placebo.
Hmm, maybe it resets your online lobby then? Everyone struggling to get online interactions should try the Dried Finger.