Agatha's Soul Cauldron, King Macar, the Gold-Cursed, and Aphetto Alchemist

Prerequisites

• Agatha's Soul Cauldron on the battlefield
• King Macar, the Gold-Cursed on the battlefield
• Aphetto Alchemist in exile

Steps

1. Activate King Macar using Aphetto Alchemist's ability by tapping it, untapping King Macar King Macar triggers, allowing you to exile a creature and create a Gold token if you do
2. Repeat

Results

• Exile all creatures opponents control
• Near-infinite Gold tokens
• Near-infinite artifact ETB
• Near-infinite artifact LTB
• Near-infinite artifact sacrifice triggers
• Near-infinite colored mana