Gretchen Titchwillow, Oboro Breezecaller, Agatha of the Vile Cauldron, and Lotus Field

Prerequisites

• Gretchen Titchwillow on the battlefield
• Oboro Breezecaller on the battlefield
• Agatha of the Vile Cauldron on the battlefield
• Lotus Field on the battlefield

Steps

1. Activate another land that enters untapped by tapping it, adding at least
2. Activate Oboro Breezecaller by paying due to Agatha of the Vile Cauldron and returning the land tapped in step 2 from the battlefield to your hand, untapping Lotus Field
3. Activate Lotus Field by tapping it, adding or Activate Gretchen by paying due to Agatha of the Vile Cauldron, causing you to draw a card and put the land returned to hand in step 2 onto the battlefield
4. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite landfall triggers
• Near-infinite mana lands you control can produce