Ragnarok, Downfall of Life

As an additional cost to play Ragnarok, Downfall of Life, sacrifice two creatures if able to, discard two cards if able and pay 5 life
At the beginning of each opponent's upkeep, that player loses 1 life, discards a card if able to, and sacrifices a creature if able to.
"Don't worry. you are on the winning side now." - Loki, God of Trickery