Thoughts Unravel

At the beginning of your upkeep, look at the top
card of target player's library. You may put it in
their graveyard.
{2}{b}, sacrifice Thoughts Unravel: Target player
puts the to three cards of their library into their graveyard.
Resilient (When this enchantment dies, you may
discard a card. If you do, return this card to your
hand.)