None what so ever; I've had had 4/5 purples show up and I'll draw the only blue. I prob pul the konoha ring 80% of the time even if the rest are purple. Just crappy rng.

Well yeah it's RNG but here is the tip ( not working all the time but at least, it does work): Always go for the same position of the item you want- at least once. I have had some decent stuffs by doing that. It's all RNG and stuffs but that is my tip, I can't guarantee much from it but at least there you have it, something to try.

sometimes it works but u cant pass three times

There used to be a way to almost always get the item you want for TI's but they seem to have fixed the method :( I wouldn't say it was a cheat but more like a bug where you would run the cursor (holding left side of the mouse) over the name you want then left go and click again after the cards start to flip themselves...atleast 85% of the time you would get the item you wanted/needed but that method no longer works so it's based off RNG now.