The Cruciatus Curse

(You may cast a legendary sorcery only if you control
a legendary creature or planeswalker.)
This spell cannot be countered.
The Cruciatus Curse deals 3 damage to target creature. That creatures controller gets an
emblem with At the beginning of your end step, this
emblem deals 1 damage to you as long as The
Cruciatus Curse is in your graveyard.