Agatha's Soul Cauldron, Knacksaw Clique, and Omen Hawker

Prerequisites

• Agatha's Soul Cauldron on the battlefield
• Knacksaw Clique in exile
• Omen Hawker on the battlefield
• Omen Hawker does not have summoning sickness and has at least one +1/+1 counter on it

Steps

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

Results

• Exile each opponent's library