Springheart Nantuko, Dryad Arbor, Frostcliff Siege, and Mana Reflection

Prerequisites

• Springheart Nantuko on the battlefield
• Dryad Arbor on the battlefield
• Frostcliff Siege on the battlefield
• Mana Reflection on the battlefield
• available

Steps

1. Play a land
2. When the land enters, Springheart Nantuko triggers, causing you to pay to create a token copy of Dryad Arbor
3. When the Dryad Arbor token enters, Springheart Nantuko triggers
4. Holding priority, activate the Dryad Arbor token by tapping it, adding due to Mana Reflection
5. Resolve the Springheart Nantuko trigger, causing you to pay to create a token copy of Dryad Arbor
6. Repeat from step 2

Results

• Infinite ETB
• Infinite tapped creature tokens
• Infinite landfall triggers
• Infinite tapped Forest tokens