The Talmud

The Talmud enters the battlefield with {x} Blood counters where {x} is equal to amount of {p/b}.
{t}: Remove {x} Blood counters, put a {x}/{x}
demon creature with Menace onto the battlefield.
{1}{t}: Pay {x} life then put {x} Blood counters on
The Talmud.
{6}{t}: Pay 6 life, remove 6 Blood counters,
You can't lose the game. This effect end
when The Talmud leaves the Battlefield.