Blightbringer Hydra

Shroud, can't be sacrificed
When Blightbringer Hydra dies, each player loses
X life, discards X cards, sacrifices X creatures,
then sacrifices X lands, where X is its power.
At the beginning of each player's upkeep,
that player may pay 1 life. If that player does,
they discard a card, sacrifice a creature, sacrifice a
land, then put a -1/-1 counter on Blightbringer
Hydra.