Gretchen Titchwillow, Oboro Breezecaller, Biomancer's Familiar, and Lotus Field

Prerequisites

• Gretchen Titchwillow on the battlefield
• Oboro Breezecaller on the battlefield
• Biomancer's Familiar on the battlefield
• Lotus Field on the battlefield
• available

Steps

1. Activate another land that enters untapped by tapping it, adding at least
2. Activate Oboro Breezecaller by paying due to Biomancer's Familiar 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 Biomancer's Familiar, 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