Demonic Blood Witch

Tidal 5 (At the beginning of your upkeep, remove a tide counter from this creature. If you can't, put 5 tide counters on it.)
At the beginning of your untap step, if Demonic Blood Witch has no tidal counters on it, you lose
4 life.
{t}, Remove a tide counter from Demonic Blood Witch: Draw a card.
{t}, Remove three tide counters Demonic Blood Witch: Target opponent sacrifices a
creature.