Sen Triplets - 218 M 2XM Foil

At the beginning of your upkeep, choose target opponent. This turn, that player can't cast spells or activate abilities and plays with their hand revealed. You may play lands and cast spells from that player's hand this turn.
They are the masters of your mind.
mythic
Legendary Artifact Creature — Human Wizard
From the Magic: The Gathering set Double Masters.