Springheart Nantuko, Dryad Arbor, Nissa, Who Shakes the World, and Temur Ascendancy

Prerequisites

• Springheart Nantuko on the battlefield
• Dryad Arbor on the battlefield
• Nissa, Who Shakes the World on the battlefield
• Temur Ascendancy 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
5. Nissa, Who Shakes the World triggers, adding
6. Resolve the Springheart Nantuko trigger, causing you to pay to create a token copy of Dryad Arbor
7. Repeat from step 2
8. Activate Nissa's first loyalty ability by putting a loyalty counter on it, animating a Forest you control
9. Cast Springheart Nantuko for its bestow cost by paying , attaching it to the animated Forest
10. Activate the animated Forest by tapping it, adding
11. Nissa triggers, adding
12. Play a land
13. When the land enters the battlefield, Springheart Nantuko triggers, causing you to pay to create a token copy of the Forest it is attached to
14. When the Forest token enter the battlefield, Springheart Nantuko triggers
15. Holding priority, activate the Forest token by tapping it, adding
16. Nissa triggers, adding
17. Resolve the Springheart Nantuko trigger, causing you to pay to create a token copy of the Forest it is attached to
18. Repeat from step 6

Results

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