Cubelet giving you stuff you already got+giving other players things you've gotten

This is really frustrating... i keep getting in my cubelets stuff i've already got.
if theres any way of changing it so once you've gotten a prize, you wont get the same one again.
plus it would be awesome if you could give players things you got but dont want.
for an example, on accident i was playing on my sisters account(we all have the same laptops), and i got the orange class in her account, and my favorite color is orange. i got really annoyed once i found out i was playing on my sisters account.

 

You keep on getting common items as they are common, if your first item (common) is won, then you have more chance of winning your second item (mythical). It is meant to work like you states above, it's like a random draw, with some draws being easier to pick. A giving system has been suggested multiple times before, but may be too OP. Thread closed.