mtg sleep card Dormir (Sleep) Magic 2010 m10#71 return target creature that player controls to its owner’s hand. MTGNexus - Sigil of Sleep

We have revisited amass numerous times to inspire other mechanics

The other cards are shuffled back into the deck as normal

When it is a benefit to your tribe that cannot easily be interacted with by the rest of the table and in the case of Edgar, does not cost you mana, it becomes something that leaves a reasonably sour taste in the mouths of the player base

And that hasnt ended, we just flavor stuff after planeswalkers (Jace's Erasure, Liliana's Specter, Chandra's Ignition) or still after legendary creatures (Ezuri's Predation, Daxos's Torment, Kalemne's Captain, Gisa's Bidding, Geralf's Masterpiece, Oona's Grace, etc)

He was the antagonist in the entire Mirage Wars