Rakdos, Blood Bather

When Rakdos, Blood Bather enters the battlefield, each player discards 2 cards.
Flying, Menace, Trample, Indestructible.
At the beginning of each upkeep, you may lose a life and draw a card.
{b/r}{b/r}{b/r}{b/r}: Copy an ability triggered by sacrificing a permanent or discarding
a card.