It’s the Scarab God.
I hated playing against this joker. He pings you at the start of every turn. He digs your dead creatures out of your graveyard, turns them into big nasty zombies, and punches you in the face with them. And unless you exile him, he just keeps coming back every time you kill him.
Just an absolute pain in the butt.
10,000 Reasons Why the MTG Multiverse is a Terrible Place to Live 