Springheart Nantuko, Mutable Explorer, The Wandering Minstrel, and Nissa, Resurgent Animist

Prerequisites

• Springheart Nantuko on the battlefield
• Mutable Explorer on the battlefield
• The Wandering Minstrel on the battlefield
• Nissa, Resurgent Animist 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 Mutable Explorer
3. When the Mutable Explorer token enters, it triggers, creating a Mutavault land token that enters untapped due to The Wandering Minstrel
4. When the Mutavault token enters, Springheart Nantuko and Nissa trigger
5. Holding priority, activate the Mutavault token by tapping it, adding
6. Resolve the Nissa trigger, adding
7. Resolve the Springheart Nantuko trigger, causing you to pay to create a token copy of Mutable Explorer
8. Repeat from step 3

Results

• Infinite ETB
• Infinite creature tokens
• Infinite landfall triggers
• Infinite tapped Mutavault land tokens