Its just luck! I got a 33 rated (4*) 18 yo MC yesterday for about 4 tokens. The only advice ill give is. After the initial round, bid as early as u can, even if the other bidders leave it late. Once its just you and one other, bid early again for another few rounds and then dont bid early, leave it til the last second, the other may think youve ran out of tokens and not bid, whilst you steal the player

Won so so many auctions doing this!