Queen Nykrodin, the Scourge

Queen Nykrodin can't be sacrificed.
Whenever another creature dies, or a card is put
into a player's graveyard from anywhere, that
player loses 2 life.
When Queen Nykrodin, the Scourge leaves the
battlefield, Each player discards their hand and
loses 2 life for each card discarded this way, then
draws seven cards.