Witch's Experiment

At the beginning of your upkeep, sacrifice a
creature. If a creature is sacrificed this way,
choose one that hasn't been chosen —
• Draw a card and lose 1 life.
• Each opponent loses 1 life and you gain 1 life.
• Each creature you don't control gets -1/-1 until
end of turn.
{bull} Return target creature card from your graveyard
to your hand.