Ancient Greenwarden, Mina and Denn, Wildborn, Retreat to Coralhelm, Bloom Tender, and Llanowar Scout

Prerequisites

• Ancient Greenwarden on the battlefield
• Mina and Denn, Wildborn on the battlefield
• Retreat to Coralhelm on the battlefield
• Bloom Tender on the battlefield
• Llanowar Scout on the battlefield
• Llanowar Scout and Bloom Tender do not have summoning sickness
• You have a land card in hand

Steps

1. Activate Llanowar Scout by tapping it, putting a land from your hand onto the battlefield
2. The land enters the battlefield, triggering Retreat to Coralhelm twice, untapping Llanowar Scout and Bloom Tender
3. Activate Bloom Tender by tapping it, adding at least
4. Activate Mina and Denn by paying and returning a land from the battlefield to your hand, giving a creature trample until end of turn
5. Repeat

Results

• Infinite landfall triggers
• Infinite non-red and non-green mana among permanents you control