Knowledge Pool + Curse of Exhaustion

Prerequisites

• Curse of Exhaustion attached to an opponent.

Steps

1. 1Whenever the opponent with Curse of Exhaustion attached casts a spell from their hand, Knowledge Pool triggers, exiling that spell.
2. 2Because Curse of Exhaustion prevents the opponent from casting more than one spell each turn, the opponent cannot cast the spell permitted by Knowledge Pool, or any other spell that turn.

Effects

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