The problem with buying a team set is that they usually don't include those "extra" cards that are a part of the master set, but aren't of an individual player.
You know, like leaders cards and such.
Also, most websites that have team set checklists don't include multi-player cards.
This card that I found recently falls into that category.
1992 Upper Deck #28 "Winfield's 400th".
Pictures Winfield as a Padre, Yankee, and Angel.
So who's team set does this card get included with?
None I've found.
But, yet again, that's what makes digging through junk boxes so much fun.