Ancient Greenwarden, Mina and Denn, Wildborn, Retreat to Coralhelm, Lotus Cobra, and Llanowar Scout

Prerequisites

• Ancient Greenwarden on the battlefield
• Mina and Denn, Wildborn on the battlefield
• Retreat to Coralhelm on the battlefield
• Lotus Cobra on the battlefield
• Llanowar Scout on the battlefield
• Llanowar Scout does not have summoning sickness
• You have a land card in hand that enters the battlefield untapped

Steps

1. Activate Llanowar Scout by tapping it, putting a land from your hand onto the battlefield
2. The land enters the battlefield, triggering Lotus Cobra and Retreat to Coralhelm twice
3. Resolve both Lotus Cobra triggers, adding
4. Resolve both Retreat to Coralhelm triggers, untapping Llanowar Scout and choosing either to untap another creature or scry 1
5. Activate a land by tapping it, adding at least
6. Activate Mina and Denn by paying and returning a land from the battlefield to your hand, giving a creature trample until end of turn
7. Repeat

Results

• Infinite colored mana
• Infinite landfall triggers
• Infinite mana creatures you control can produce
• Infinite scry 1
• Infinite untap of creatures you control