Astaros, Angel of Protection

Astaros, Angel of Protection's Color is White
Flying, lifelink, Hexproof
Other Creatures you control have hexproof
{1}{w}{w}, {t}: Prevent all damage that would be
dealt by a source of you choice an opponent
controls.
{5}{w}{w}, Sacrifice Astaros, Angel of protection:
your life total becomes the life total you had in
the beggining of the game