Tazri, Stalwart Survivor, Knacksaw Clique, and Agatha of the Vile Cauldron

Prerequisites

• Tazri, Stalwart Survivor on the battlefield
• Knacksaw Clique on the battlefield
• Agatha of the Vile Cauldron on the battlefield
• Knacksaw Clique does not have summoning sickness
• Agatha of the Vile Cauldron has power 1 or greater

Steps

1. Activate Knacksaw Clique by tapping it, adding that can only be spent to activate abilities
2. Activate Knacksaw Clique by paying and untapping it, exiling the top card of an opponent's library with the ability to cast that card this turn
3. Repeat

Results

• Exile each opponent's library