Moderation

Knowledge Pool + Moderation + Blim, Comedic Genius

Target opponent can only cast one spell per turn, Exile all spells target opponent casts from their hand, Lock

Knowledge Pool + Moderation + Coveted Falcon

Exile all spells target opponent casts from their hand, Lock, Target opponent can only cast one spell per turn

Knowledge Pool + Moderation + Donate

Exile all spells target opponent casts from their hand, Target opponent can only cast one spell per turn, Lock

Knowledge Pool + Moderation + Fractured Identity

Exile all spells opponents cast from their hands, Opponents can only cast one spell per turn, Lock

Knowledge Pool + Moderation + Harmless Offering

Exile all spells target opponent casts from their hand, Target opponent can only cast one spell per turn, Lock

Knowledge Pool + Moderation + Stiltzkin, Moogle Merchant

Target opponent can only cast one spell per turn, Exile all spells target opponent casts from their hand, Lock

Knowledge Pool + Moderation + Zedruu the Greathearted

Exile all spells target opponent casts from their hand, Target opponent can only cast one spell per turn, Lock

Moderation + Possibility Storm + Fractured Identity

Opponents can't cast spells, Lock