Historical Rules · 29 September 2017
Rule 805.3b
Official source text from the 29 September 2017 Rules release
The process for handling cards that allow a player to begin the game with them on the battlefield is altered accordingly. First, each player on the starting team, in whatever order that team likes, may put any or all such cards onto the battlefield from his or her opening hand. Teammates may consult while making their decisions. Then each player on each other team in turn order does the same.