NEVER deal with this guy (BastiBS or Sebastian Jochmann as mentioned on his eBay page), ever.
Some of his games are counterfeit, he is dishonest and his prices are totally insane.
He will also try various fishy stuff outside eBay, like offering to send you rare sealed games (probably genuine, sure) in exchange for something else, he will try fishy stuff without tracking etc.
He usually buys stuff with that account (hidding both his feedback and the games he bought):
appearing as bidder 2****v
during the auctions.
to resell them 5 to 10 times that price under this second account:
Unfortunately he still manages to get naive people think that those games are almost worth that price, then he sells them for "less" (but still insane prices) outside eBay.