Enchantment — Aura Curse
Enchant player At the beginning of enchanted player's upkeep, that player sacrifices a creature or planeswalker. If the player can't, they lose 5 life.
Metagame: appears in 3 decks (0.7 %)
There are many important moments in the story, but the most crucial—called “story spotlights”—are shown on cards. These cards have the Planeswalker symbol in their text box; this symbol has no effect on gameplay. You can read more about these events in the official Magic fiction at http://www.mtgstory.com.
The enchanted player chooses a permanent to sacrifice from among the creatures and planeswalkers that player controls. You don’t choose which type of permanent the player has to sacrifice.