The Yellow Sign

At the beginning of your end step, if a creature died this turn, each opponent loses 1 life.
{1}{b}: Level 2
When this Class becomes level 2, look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.
{6}{b}: Level 3
At the beginning of your end step, each opponent loses life equal to the life they lost this turn.