Quacks of Quedlinberg

Reveal the top card of your library. You may
continue to reveal cards until the total mana
value of revealed cards exceeds 7, then create a
treasure token for each land revealed this way
and put one of the revealed cards into your hand.
Put the rest on the bottom of your library in a
random order.
If the total mana value of cards revealed this way
exceeds 7, you lose that much life.