Mechanical Lichs Ascension

When you cast an artifact spell or an artifact
creature you control dies, put a quest counter on Mechanical Lichs Ascension
If you were to lose the game by having 0 life or
0 cards in your library, instead remove all quest counters from Mechanical Lich Ascension, your
life total becomes equal to the amount of
counters removed this way, then shuffle your graveyard into your library.