Tomb of Horrors

When Tomb of Horrors enters the battlefield,
your life total becomes 5.
You can't gain life.
At the beginning of each upkeep, put a quest
counter on Tomb of Horrors. Then, if Tomb of Horrors has 3 or more quest counters on it,
sacrifice it and your life total becomes equal to
your starting life total. Search your library for
any number of artifacts, reveal them, and put
them into your hand.