Stasis Chamber

As long as you have 5 or less life, if a source would deal damage to you, prevent all but 1 of that damage.
At the beginning of your upkeep, if your library has five or fewer cards in it, put target
card from your graveyard on the bottom of your library.
{2}{w}{u}{b}{r}{g}, exile Stasis Chamber: Shuffle
your graveyard into your library. Your life total becomes equal to your starting life total.