Psycho Mantis

Hexproof
Psychic Intrusion: When Psycho Mantis enters the battlefield, target opponent reveals their hand. You may cast an instant or sorcery card from their hand without paying its mana cost.
Mind Control: Whenever an opponent discards a card, you may pay {1}. If you do, create a 2/2 black Zombie creature token.

"I know your every move... and I will use it against you."