Zerilith, Witch of the Depths

Whenever a player draws a card, they may
discard a card. If they don't, they lose 1 life.
Exile a card from a graveyard: Choose one —
• Scry 1
• Target creature gets -1/-0 until end of turn.
• Target player loses 1 life.
"You humans dump so much into the sea. Ships, gold,
bodies. I'm just repaying your generosity."