Lumra, Bellow of the Woods, Port of Karfell, Spelunking, and Overgrown Estate

Prerequisites

• Lumra, Bellow of the Woods in the graveyard
• Port of Karfell on the battlefield
• Spelunking on the battlefield
• Overgrown Estate on the battlefield
• Lands you control excluding Port of Karfell can tap to produce at least
• Archelos is untapped

Steps

1. Activate any number of other lands you control by tapping them, adding at least
2. Activate Overgrown Estate by sacrificing a land other than Port of Karfell, causing you to gain 3 life
3. Repeat step 2 until you control no other lands except Port of Karfell
4. Activate Port of Karfell's second ability by paying , tapping and sacrificing it, causing you to mill four cards and return Lumra from your graveyard to the battlefield tapped
5. Lumra enters the battlefield and dies as a state-based action due to having 0 toughness
6. Lumra's enter-the-battlefield ability triggers, causing you to mill four cards and return all land cards from your graveyard to the battlefield untapped due to Spelunking
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite mana lands you control can produce
• Infinite sacrifice triggers
• Infinite self-mill
• Put all land cards from your library and graveyard onto the battlefield