Moderation + Possibility Storm + Fractured Identity Combo

Fractured Identity in hand.

Moderation and Possibility Storm on the battlefield.

Cast Fractured Identity by paying , exiling Moderation and causing each opponent to create a token copy of it.

Any time an opponent would cast a spell, Possibility Storm exiles that spell and reveals cards until you find one they could cast.

The opponent's Moderation prevents them from casting a second spell resulting in a lock.

Opponents can't cast spells

Lock