The Lord Ruler

When The Lord Ruler enters the battlefield
create Atium, a legendary colorless artifact
token with, "If you would lose the game
because your life total is 0 or less, instead your
life total becomes 20, then exile all nonland
nongod permanents you control."
The Lord Ruler gains, "Indestructible, cannot
be exiled and deathtouch" while you control
a permanent named "Atium."