Commissioners can not create their own undroppable list. The waiver wire or waivers is the list of available players who are locked from being added to teams for a period of time called the «waiver period» in order to give all teams in a league a chance to add them. Custom Leagues can have a waiver order that does not reset to the inverse order of the standings on Tuesdays. Typically, players lock on the waiver wire after the draft , at game time , or w hen a player is dropped from a roster.