re: trade sent to me; 14 team league, PPR

no way dude. When someone offers 3 or more players dont get caught up in depth or filling out your lineup. Trades that dont make your starting lineup better(more points) right now, should be avoided usually unless you are one the front runners.

Rarely is there a need for more than a 2 for 1 (or 2-2 when u must trade even.) Theres one maybe 2 players he wants the rest of this is a diversion.

In this case, its completely obvious u are getting fleeced. Initial Trades offers in general have a "how do i get over on u" culture usually. Meaning theres a winner and a loser so if u arent absolutely sure u are fleecing a guy, youre prolly the loser.
Good Luck