Historical Rules · 18 June 2010
Rule 810.9e
Official source text from the 18 June 2010 Rules release
A player can't exchange life totals with his or her teammate. If an effect would cause that to occur, the exchange won't happen.
Historical Rules · 18 June 2010
Official source text from the 18 June 2010 Rules release
A player can't exchange life totals with his or her teammate. If an effect would cause that to occur, the exchange won't happen.