Hearthhull, the Worldseed, Retreat to Coralhelm, and Ancient Greenwarden

Prerequisites

• Hearthhull, the Worldseed on the battlefield
• Retreat to Coralhelm on the battlefield
• Ancient Greenwarden on the battlefield

Steps

1. Activate a land by tapping it, adding at least
2. Activate Hearthhull by paying , tapping it and sacrificing a land
3. If Hearthhull has eight or more charge counters on it, it triggers, causing each opponent to lose 2 life
4. Resolve the Hearthhull ability, causing you to draw two cards and allowing you to play an additional land this turn
5. Play the land from your graveyard
6. When the land enters the battlefield, Retreat to Coralhelm triggers twice, untapping Hearthhull and another creature you control
7. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite landfall triggers
• Near-infinite lifeloss
• Near-infinite mana creatures you control can produce
• Near-infinite untap of creatures you control