When putting together a eCommerce website that sells collectible cards (Baseball Football basketball etc) and listing each card a certain way that other websites that sell the same kind of cards sells cause there are only one way to describe certain cards on each. now is this considered duplicate content and will I take a big serp hit if I do this? I have no idea how else to describe the cards. Also if I on the website have two very similar cards and describe them does that hurt the listing in the search engine for duplicated content? Example: Mint Topps Baseball Card 1977 Reggie Jackson Rookie and then in listing another one like this: Mint Topps Baseball Card 1977 Reggie Jackson ALL STAR CARD Being very similar but different at the tail end all on the same website listed by me?