Barrier of Dark Secrets

Defender (This creature can't attack.)
Each card in your graveyard has, "Discard a card: Return to this card from your graveyard to your
hand."
"Barriers are meant to be put in place for very valid reasons, any fool that breaks those barriers, or in any
way goes through them, is a someone who is an idiot
in the highest degree." - Raylia the Luckless